Home / 101,979.15-152,945.65-38,776.74

Finding the Fourth Proportional to 101,979.15, 152,945.65 and 38,776.74

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Solution

The fourth proportional to 101,979.15, 152,945.65 and 38,776.74 is: 58,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,979.15 : 152,945.65 = 38,776.74 : x
  2. Step 2: Convert to fraction form
    101,979.15/152,945.65 = 38,776.74/x
  3. Step 3: Cross multiply
    101,979.15x = 152,945.65 × 38,776.74
  4. Step 4: Simplify right side
    101,979.15x = 5,930,733,704.18
  5. Step 5: Solve for x
    x = 5,930,733,704.18/101,979.15
  6. Step 6: Final answer
    x = 58,156.34

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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.