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Finding the Fourth Proportional to 101,514.95, 151,952.55 and 90,816.41

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Solution

The fourth proportional to 101,514.95, 151,952.55 and 90,816.41 is: 135,938.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,514.95 : 151,952.55 = 90,816.41 : x
  2. Step 2: Convert to fraction form
    101,514.95/151,952.55 = 90,816.41/x
  3. Step 3: Cross multiply
    101,514.95x = 151,952.55 × 90,816.41
  4. Step 4: Simplify right side
    101,514.95x = 13,799,784,321.58
  5. Step 5: Solve for x
    x = 13,799,784,321.58/101,514.95
  6. Step 6: Final answer
    x = 135,938.45

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1.5x scale

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.