Home / 138,605.08-207,886.02-45,110.20

Finding the Fourth Proportional to 138,605.08, 207,886.02 and 45,110.20

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Solution

The fourth proportional to 138,605.08, 207,886.02 and 45,110.20 is: 67,658.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,605.08 : 207,886.02 = 45,110.20 : x
  2. Step 2: Convert to fraction form
    138,605.08/207,886.02 = 45,110.20/x
  3. Step 3: Cross multiply
    138,605.08x = 207,886.02 × 45,110.20
  4. Step 4: Simplify right side
    138,605.08x = 9,377,779,939.40
  5. Step 5: Solve for x
    x = 9,377,779,939.40/138,605.08
  6. Step 6: Final answer
    x = 67,658.27

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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.