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Finding the Fourth Proportional to 108,687.66, 149,987.07 and 60,940.86

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Solution

The fourth proportional to 108,687.66, 149,987.07 and 60,940.86 is: 84,097.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,687.66 : 149,987.07 = 60,940.86 : x
  2. Step 2: Convert to fraction form
    108,687.66/149,987.07 = 60,940.86/x
  3. Step 3: Cross multiply
    108,687.66x = 149,987.07 × 60,940.86
  4. Step 4: Simplify right side
    108,687.66x = 9,140,341,034.68
  5. Step 5: Solve for x
    x = 9,140,341,034.68/108,687.66
  6. Step 6: Final answer
    x = 84,097.32

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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.