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Finding the Fourth Proportional to 123,602.70, 185,404.05 and 30,108.45

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Solution

The fourth proportional to 123,602.70, 185,404.05 and 30,108.45 is: 45,162.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,602.70 : 185,404.05 = 30,108.45 : x
  2. Step 2: Convert to fraction form
    123,602.70/185,404.05 = 30,108.45/x
  3. Step 3: Cross multiply
    123,602.70x = 185,404.05 × 30,108.45
  4. Step 4: Simplify right side
    123,602.70x = 5,582,228,569.22
  5. Step 5: Solve for x
    x = 5,582,228,569.22/123,602.70
  6. Step 6: Final answer
    x = 45,162.68

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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.