Home / 138,815.04-208,339.20-59,989.44

Finding the Fourth Proportional to 138,815.04, 208,339.20 and 59,989.44

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Solution

The fourth proportional to 138,815.04, 208,339.20 and 59,989.44 is: 90,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,815.04 : 208,339.20 = 59,989.44 : x
  2. Step 2: Convert to fraction form
    138,815.04/208,339.20 = 59,989.44/x
  3. Step 3: Cross multiply
    138,815.04x = 208,339.20 × 59,989.44
  4. Step 4: Simplify right side
    138,815.04x = 12,498,151,938.05
  5. Step 5: Solve for x
    x = 12,498,151,938.05/138,815.04
  6. Step 6: Final answer
    x = 90,034.57

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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.