Home / 125,941.13-188,985.50-90,364.10

Finding the Fourth Proportional to 125,941.13, 188,985.50 and 90,364.10

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Solution

The fourth proportional to 125,941.13, 188,985.50 and 90,364.10 is: 135,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,941.13 : 188,985.50 = 90,364.10 : x
  2. Step 2: Convert to fraction form
    125,941.13/188,985.50 = 90,364.10/x
  3. Step 3: Cross multiply
    125,941.13x = 188,985.50 × 90,364.10
  4. Step 4: Simplify right side
    125,941.13x = 17,077,504,168.73
  5. Step 5: Solve for x
    x = 17,077,504,168.73/125,941.13
  6. Step 6: Final answer
    x = 135,599.11

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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.