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Finding the Fourth Proportional to 101,373.80, 152,147.10 and 45,300.20

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Solution

The fourth proportional to 101,373.80, 152,147.10 and 45,300.20 is: 67,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,373.80 : 152,147.10 = 45,300.20 : x
  2. Step 2: Convert to fraction form
    101,373.80/152,147.10 = 45,300.20/x
  3. Step 3: Cross multiply
    101,373.80x = 152,147.10 × 45,300.20
  4. Step 4: Simplify right side
    101,373.80x = 6,892,294,059.42
  5. Step 5: Solve for x
    x = 6,892,294,059.42/101,373.80
  6. Step 6: Final answer
    x = 67,988.91

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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.