Home / 134,890.20-202,335.30-71,904.60

Finding the Fourth Proportional to 134,890.20, 202,335.30 and 71,904.60

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Solution

The fourth proportional to 134,890.20, 202,335.30 and 71,904.60 is: 107,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,890.20 : 202,335.30 = 71,904.60 : x
  2. Step 2: Convert to fraction form
    134,890.20/202,335.30 = 71,904.60/x
  3. Step 3: Cross multiply
    134,890.20x = 202,335.30 × 71,904.60
  4. Step 4: Simplify right side
    134,890.20x = 14,548,838,812.38
  5. Step 5: Solve for x
    x = 14,548,838,812.38/134,890.20
  6. Step 6: Final answer
    x = 107,856.90

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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.