Home / 136,904.60-205,337.70-43,419.80

Finding the Fourth Proportional to 136,904.60, 205,337.70 and 43,419.80

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Solution

The fourth proportional to 136,904.60, 205,337.70 and 43,419.80 is: 65,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,904.60 : 205,337.70 = 43,419.80 : x
  2. Step 2: Convert to fraction form
    136,904.60/205,337.70 = 43,419.80/x
  3. Step 3: Cross multiply
    136,904.60x = 205,337.70 × 43,419.80
  4. Step 4: Simplify right side
    136,904.60x = 8,915,721,866.46
  5. Step 5: Solve for x
    x = 8,915,721,866.46/136,904.60
  6. Step 6: Final answer
    x = 65,123.61

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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.