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Finding the Fourth Proportional to 123,373.41, 185,047.65 and 83,647.47

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Solution

The fourth proportional to 123,373.41, 185,047.65 and 83,647.47 is: 125,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,373.41 : 185,047.65 = 83,647.47 : x
  2. Step 2: Convert to fraction form
    123,373.41/185,047.65 = 83,647.47/x
  3. Step 3: Cross multiply
    123,373.41x = 185,047.65 × 83,647.47
  4. Step 4: Simplify right side
    123,373.41x = 15,478,767,751.95
  5. Step 5: Solve for x
    x = 15,478,767,751.95/123,373.41
  6. Step 6: Final answer
    x = 125,462.75

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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.