Home / 101,412.95-152,123.23-30,336.53

Finding the Fourth Proportional to 101,412.95, 152,123.23 and 30,336.53

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Solution

The fourth proportional to 101,412.95, 152,123.23 and 30,336.53 is: 45,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,412.95 : 152,123.23 = 30,336.53 : x
  2. Step 2: Convert to fraction form
    101,412.95/152,123.23 = 30,336.53/x
  3. Step 3: Cross multiply
    101,412.95x = 152,123.23 × 30,336.53
  4. Step 4: Simplify right side
    101,412.95x = 4,614,890,207.90
  5. Step 5: Solve for x
    x = 4,614,890,207.90/101,412.95
  6. Step 6: Final answer
    x = 45,505.93

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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.