Home / 101,121.30-139,575.15-58,693.50

Finding the Fourth Proportional to 101,121.30, 139,575.15 and 58,693.50

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Solution

The fourth proportional to 101,121.30, 139,575.15 and 58,693.50 is: 81,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,121.30 : 139,575.15 = 58,693.50 : x
  2. Step 2: Convert to fraction form
    101,121.30/139,575.15 = 58,693.50/x
  3. Step 3: Cross multiply
    101,121.30x = 139,575.15 × 58,693.50
  4. Step 4: Simplify right side
    101,121.30x = 8,192,154,066.53
  5. Step 5: Solve for x
    x = 8,192,154,066.53/101,121.30
  6. Step 6: Final answer
    x = 81,013.14

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1.5x scale

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.