Home / 118,695.15-163,801.26-64,979.28

Finding the Fourth Proportional to 118,695.15, 163,801.26 and 64,979.28

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Solution

The fourth proportional to 118,695.15, 163,801.26 and 64,979.28 is: 89,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,695.15 : 163,801.26 = 64,979.28 : x
  2. Step 2: Convert to fraction form
    118,695.15/163,801.26 = 64,979.28/x
  3. Step 3: Cross multiply
    118,695.15x = 163,801.26 × 64,979.28
  4. Step 4: Simplify right side
    118,695.15x = 10,643,687,937.89
  5. Step 5: Solve for x
    x = 10,643,687,937.89/118,695.15
  6. Step 6: Final answer
    x = 89,672.48

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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.