Home / 123,557.47-185,203.55-52,420.07

Finding the Fourth Proportional to 123,557.47, 185,203.55 and 52,420.07

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Solution

The fourth proportional to 123,557.47, 185,203.55 and 52,420.07 is: 78,573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,557.47 : 185,203.55 = 52,420.07 : x
  2. Step 2: Convert to fraction form
    123,557.47/185,203.55 = 52,420.07/x
  3. Step 3: Cross multiply
    123,557.47x = 185,203.55 × 52,420.07
  4. Step 4: Simplify right side
    123,557.47x = 9,708,382,793.15
  5. Step 5: Solve for x
    x = 9,708,382,793.15/123,557.47
  6. Step 6: Final answer
    x = 78,573.82

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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.