Home / 125,814,937.40-188,722,406.10-85,504,153.40

Finding the Fourth Proportional to 125,814,937.40, 188,722,406.10 and 85,504,153.40

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Solution

The fourth proportional to 125,814,937.40, 188,722,406.10 and 85,504,153.40 is: 128,256,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,814,937.40 : 188,722,406.10 = 85,504,153.40 : x
  2. Step 2: Convert to fraction form
    125,814,937.40/188,722,406.10 = 85,504,153.40/x
  3. Step 3: Cross multiply
    125,814,937.40x = 188,722,406.10 × 85,504,153.40
  4. Step 4: Simplify right side
    125,814,937.40x = 16,136,549,561,191,496
  5. Step 5: Solve for x
    x = 16,136,549,561,191,496/125,814,937.40
  6. Step 6: Final answer
    x = 128,256,230.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.