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Finding the Fourth Proportional to 132,903.86, 199,321.56 and 39,387.74

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Solution

The fourth proportional to 132,903.86, 199,321.56 and 39,387.74 is: 59,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,903.86 : 199,321.56 = 39,387.74 : x
  2. Step 2: Convert to fraction form
    132,903.86/199,321.56 = 39,387.74/x
  3. Step 3: Cross multiply
    132,903.86x = 199,321.56 × 39,387.74
  4. Step 4: Simplify right side
    132,903.86x = 7,850,824,785.07
  5. Step 5: Solve for x
    x = 7,850,824,785.07/132,903.86
  6. Step 6: Final answer
    x = 59,071.46

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1.5x scale

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.