Home / 118,672.47-163,761.66-64,947.11

Finding the Fourth Proportional to 118,672.47, 163,761.66 and 64,947.11

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Solution

The fourth proportional to 118,672.47, 163,761.66 and 64,947.11 is: 89,623.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,672.47 : 163,761.66 = 64,947.11 : x
  2. Step 2: Convert to fraction form
    118,672.47/163,761.66 = 64,947.11/x
  3. Step 3: Cross multiply
    118,672.47x = 163,761.66 × 64,947.11
  4. Step 4: Simplify right side
    118,672.47x = 10,635,845,726.99
  5. Step 5: Solve for x
    x = 10,635,845,726.99/118,672.47
  6. Step 6: Final answer
    x = 89,623.53

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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.