Home / 123,494.57-170,423.32-66,905.95

Finding the Fourth Proportional to 123,494.57, 170,423.32 and 66,905.95

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Solution

The fourth proportional to 123,494.57, 170,423.32 and 66,905.95 is: 92,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,494.57 : 170,423.32 = 66,905.95 : x
  2. Step 2: Convert to fraction form
    123,494.57/170,423.32 = 66,905.95/x
  3. Step 3: Cross multiply
    123,494.57x = 170,423.32 × 66,905.95
  4. Step 4: Simplify right side
    123,494.57x = 11,402,334,126.75
  5. Step 5: Solve for x
    x = 11,402,334,126.75/123,494.57
  6. Step 6: Final answer
    x = 92,330.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.