Home / 138,840.60-208,358.10-60,011.40

Finding the Fourth Proportional to 138,840.60, 208,358.10 and 60,011.40

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Solution

The fourth proportional to 138,840.60, 208,358.10 and 60,011.40 is: 90,059.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,840.60 : 208,358.10 = 60,011.40 : x
  2. Step 2: Convert to fraction form
    138,840.60/208,358.10 = 60,011.40/x
  3. Step 3: Cross multiply
    138,840.60x = 208,358.10 × 60,011.40
  4. Step 4: Simplify right side
    138,840.60x = 12,503,861,282.34
  5. Step 5: Solve for x
    x = 12,503,861,282.34/138,840.60
  6. Step 6: Final answer
    x = 90,059.11

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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.