Home / 108,428.30-162,642.45-38,314.70

Finding the Fourth Proportional to 108,428.30, 162,642.45 and 38,314.70

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Solution

The fourth proportional to 108,428.30, 162,642.45 and 38,314.70 is: 57,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,428.30 : 162,642.45 = 38,314.70 : x
  2. Step 2: Convert to fraction form
    108,428.30/162,642.45 = 38,314.70/x
  3. Step 3: Cross multiply
    108,428.30x = 162,642.45 × 38,314.70
  4. Step 4: Simplify right side
    108,428.30x = 6,231,596,679.02
  5. Step 5: Solve for x
    x = 6,231,596,679.02/108,428.30
  6. Step 6: Final answer
    x = 57,472.05

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1.5x scale

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.