Home / 156,132.40-215,463.06-84,513.04

Finding the Fourth Proportional to 156,132.40, 215,463.06 and 84,513.04

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Solution

The fourth proportional to 156,132.40, 215,463.06 and 84,513.04 is: 116,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,132.40 : 215,463.06 = 84,513.04 : x
  2. Step 2: Convert to fraction form
    156,132.40/215,463.06 = 84,513.04/x
  3. Step 3: Cross multiply
    156,132.40x = 215,463.06 × 84,513.04
  4. Step 4: Simplify right side
    156,132.40x = 18,209,438,208.30
  5. Step 5: Solve for x
    x = 18,209,438,208.30/156,132.40
  6. Step 6: Final answer
    x = 116,628.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.