Home / 156,079.28-215,389.99-84,459.30

Finding the Fourth Proportional to 156,079.28, 215,389.99 and 84,459.30

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Solution

The fourth proportional to 156,079.28, 215,389.99 and 84,459.30 is: 116,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,079.28 : 215,389.99 = 84,459.30 : x
  2. Step 2: Convert to fraction form
    156,079.28/215,389.99 = 84,459.30/x
  3. Step 3: Cross multiply
    156,079.28x = 215,389.99 × 84,459.30
  4. Step 4: Simplify right side
    156,079.28x = 18,191,687,360.11
  5. Step 5: Solve for x
    x = 18,191,687,360.11/156,079.28
  6. Step 6: Final answer
    x = 116,554.15

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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.