Home / 120,898.10-181,243.20-42,002.06

Finding the Fourth Proportional to 120,898.10, 181,243.20 and 42,002.06

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Solution

The fourth proportional to 120,898.10, 181,243.20 and 42,002.06 is: 62,966.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,898.10 : 181,243.20 = 42,002.06 : x
  2. Step 2: Convert to fraction form
    120,898.10/181,243.20 = 42,002.06/x
  3. Step 3: Cross multiply
    120,898.10x = 181,243.20 × 42,002.06
  4. Step 4: Simplify right side
    120,898.10x = 7,612,587,760.99
  5. Step 5: Solve for x
    x = 7,612,587,760.99/120,898.10
  6. Step 6: Final answer
    x = 62,966.98

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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.