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Finding the Fourth Proportional to 101,117.80, 151,773.90 and 51,254.20

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Solution

The fourth proportional to 101,117.80, 151,773.90 and 51,254.20 is: 76,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,117.80 : 151,773.90 = 51,254.20 : x
  2. Step 2: Convert to fraction form
    101,117.80/151,773.90 = 51,254.20/x
  3. Step 3: Cross multiply
    101,117.80x = 151,773.90 × 51,254.20
  4. Step 4: Simplify right side
    101,117.80x = 7,779,049,825.38
  5. Step 5: Solve for x
    x = 7,779,049,825.38/101,117.80
  6. Step 6: Final answer
    x = 76,930.57

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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.