Home / 123,439.96-170,346.76-66,851.32

Finding the Fourth Proportional to 123,439.96, 170,346.76 and 66,851.32

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Solution

The fourth proportional to 123,439.96, 170,346.76 and 66,851.32 is: 92,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,439.96 : 170,346.76 = 66,851.32 : x
  2. Step 2: Convert to fraction form
    123,439.96/170,346.76 = 66,851.32/x
  3. Step 3: Cross multiply
    123,439.96x = 170,346.76 × 66,851.32
  4. Step 4: Simplify right side
    123,439.96x = 11,387,905,763.72
  5. Step 5: Solve for x
    x = 11,387,905,763.72/123,439.96
  6. Step 6: Final answer
    x = 92,254.61

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1.5x scale

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.