Home / 120,024.96-165,631.68-66,307.20

Finding the Fourth Proportional to 120,024.96, 165,631.68 and 66,307.20

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Solution

The fourth proportional to 120,024.96, 165,631.68 and 66,307.20 is: 91,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,024.96 : 165,631.68 = 66,307.20 : x
  2. Step 2: Convert to fraction form
    120,024.96/165,631.68 = 66,307.20/x
  3. Step 3: Cross multiply
    120,024.96x = 165,631.68 × 66,307.20
  4. Step 4: Simplify right side
    120,024.96x = 10,982,572,932.10
  5. Step 5: Solve for x
    x = 10,982,572,932.10/120,024.96
  6. Step 6: Final answer
    x = 91,502.41

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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.