Home / 354,176.42-531,123.68-129,485.66

Finding the Fourth Proportional to 354,176.42, 531,123.68 and 129,485.66

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Solution

The fourth proportional to 354,176.42, 531,123.68 and 129,485.66 is: 194,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,176.42 : 531,123.68 = 129,485.66 : x
  2. Step 2: Convert to fraction form
    354,176.42/531,123.68 = 129,485.66/x
  3. Step 3: Cross multiply
    354,176.42x = 531,123.68 × 129,485.66
  4. Step 4: Simplify right side
    354,176.42x = 68,772,897,914.52
  5. Step 5: Solve for x
    x = 68,772,897,914.52/354,176.42
  6. Step 6: Final answer
    x = 194,176.96

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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.