Home / 138,829.10-208,340.85-59,999.90

Finding the Fourth Proportional to 138,829.10, 208,340.85 and 59,999.90

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Solution

The fourth proportional to 138,829.10, 208,340.85 and 59,999.90 is: 90,041.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,829.10 : 208,340.85 = 59,999.90 : x
  2. Step 2: Convert to fraction form
    138,829.10/208,340.85 = 59,999.90/x
  3. Step 3: Cross multiply
    138,829.10x = 208,340.85 × 59,999.90
  4. Step 4: Simplify right side
    138,829.10x = 12,500,430,165.92
  5. Step 5: Solve for x
    x = 12,500,430,165.92/138,829.10
  6. Step 6: Final answer
    x = 90,041.86

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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.