Home / 435,427.18-653,165.08-135,949.12

Finding the Fourth Proportional to 435,427.18, 653,165.08 and 135,949.12

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Solution

The fourth proportional to 435,427.18, 653,165.08 and 135,949.12 is: 203,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,427.18 : 653,165.08 = 135,949.12 : x
  2. Step 2: Convert to fraction form
    435,427.18/653,165.08 = 135,949.12/x
  3. Step 3: Cross multiply
    435,427.18x = 653,165.08 × 135,949.12
  4. Step 4: Simplify right side
    435,427.18x = 88,797,217,840.73
  5. Step 5: Solve for x
    x = 88,797,217,840.73/435,427.18
  6. Step 6: Final answer
    x = 203,931.27

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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.