Home / 123,564.80-185,347.21-30,070.55

Finding the Fourth Proportional to 123,564.80, 185,347.21 and 30,070.55

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Solution

The fourth proportional to 123,564.80, 185,347.21 and 30,070.55 is: 45,105.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,564.80 : 185,347.21 = 30,070.55 : x
  2. Step 2: Convert to fraction form
    123,564.80/185,347.21 = 30,070.55/x
  3. Step 3: Cross multiply
    123,564.80x = 185,347.21 × 30,070.55
  4. Step 4: Simplify right side
    123,564.80x = 5,573,491,618.93
  5. Step 5: Solve for x
    x = 5,573,491,618.93/123,564.80
  6. Step 6: Final answer
    x = 45,105.82

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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.