Home / 120,877.92-181,350.90-42,000.12

Finding the Fourth Proportional to 120,877.92, 181,350.90 and 42,000.12

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Solution

The fourth proportional to 120,877.92, 181,350.90 and 42,000.12 is: 63,012.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,877.92 : 181,350.90 = 42,000.12 : x
  2. Step 2: Convert to fraction form
    120,877.92/181,350.90 = 42,000.12/x
  3. Step 3: Cross multiply
    120,877.92x = 181,350.90 × 42,000.12
  4. Step 4: Simplify right side
    120,877.92x = 7,616,759,562.11
  5. Step 5: Solve for x
    x = 7,616,759,562.11/120,877.92
  6. Step 6: Final answer
    x = 63,012.00

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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.