Home / 139,350.34-192,304.02-75,689.20

Finding the Fourth Proportional to 139,350.34, 192,304.02 and 75,689.20

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Solution

The fourth proportional to 139,350.34, 192,304.02 and 75,689.20 is: 104,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,350.34 : 192,304.02 = 75,689.20 : x
  2. Step 2: Convert to fraction form
    139,350.34/192,304.02 = 75,689.20/x
  3. Step 3: Cross multiply
    139,350.34x = 192,304.02 × 75,689.20
  4. Step 4: Simplify right side
    139,350.34x = 14,555,337,430.58
  5. Step 5: Solve for x
    x = 14,555,337,430.58/139,350.34
  6. Step 6: Final answer
    x = 104,451.40

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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.