Home / 138,889.10-208,430.85-60,059.90

Finding the Fourth Proportional to 138,889.10, 208,430.85 and 60,059.90

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Solution

The fourth proportional to 138,889.10, 208,430.85 and 60,059.90 is: 90,131.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,889.10 : 208,430.85 = 60,059.90 : x
  2. Step 2: Convert to fraction form
    138,889.10/208,430.85 = 60,059.90/x
  3. Step 3: Cross multiply
    138,889.10x = 208,430.85 × 60,059.90
  4. Step 4: Simplify right side
    138,889.10x = 12,518,336,007.92
  5. Step 5: Solve for x
    x = 12,518,336,007.92/138,889.10
  6. Step 6: Final answer
    x = 90,131.88

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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.