Home / 230,931.90-346,311.45-81,114.30

Finding the Fourth Proportional to 230,931.90, 346,311.45 and 81,114.30

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Solution

The fourth proportional to 230,931.90, 346,311.45 and 81,114.30 is: 121,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,931.90 : 346,311.45 = 81,114.30 : x
  2. Step 2: Convert to fraction form
    230,931.90/346,311.45 = 81,114.30/x
  3. Step 3: Cross multiply
    230,931.90x = 346,311.45 × 81,114.30
  4. Step 4: Simplify right side
    230,931.90x = 28,090,810,848.74
  5. Step 5: Solve for x
    x = 28,090,810,848.74/230,931.90
  6. Step 6: Final answer
    x = 121,641.10

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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.