Home / 101,304.17-139,805.13-58,290.20

Finding the Fourth Proportional to 101,304.17, 139,805.13 and 58,290.20

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Solution

The fourth proportional to 101,304.17, 139,805.13 and 58,290.20 is: 80,443.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,304.17 : 139,805.13 = 58,290.20 : x
  2. Step 2: Convert to fraction form
    101,304.17/139,805.13 = 58,290.20/x
  3. Step 3: Cross multiply
    101,304.17x = 139,805.13 × 58,290.20
  4. Step 4: Simplify right side
    101,304.17x = 8,149,268,289.70
  5. Step 5: Solve for x
    x = 8,149,268,289.70/101,304.17
  6. Step 6: Final answer
    x = 80,443.57

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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.