Home / 101,865.02-152,805.70-38,715.40

Finding the Fourth Proportional to 101,865.02, 152,805.70 and 38,715.40

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Solution

The fourth proportional to 101,865.02, 152,805.70 and 38,715.40 is: 58,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,865.02 : 152,805.70 = 38,715.40 : x
  2. Step 2: Convert to fraction form
    101,865.02/152,805.70 = 38,715.40/x
  3. Step 3: Cross multiply
    101,865.02x = 152,805.70 × 38,715.40
  4. Step 4: Simplify right side
    101,865.02x = 5,915,933,797.78
  5. Step 5: Solve for x
    x = 5,915,933,797.78/101,865.02
  6. Step 6: Final answer
    x = 58,076.21

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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.