Home / 118,680.93-163,781.24-64,964.79

Finding the Fourth Proportional to 118,680.93, 163,781.24 and 64,964.79

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Solution

The fourth proportional to 118,680.93, 163,781.24 and 64,964.79 is: 89,652.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,680.93 : 163,781.24 = 64,964.79 : x
  2. Step 2: Convert to fraction form
    118,680.93/163,781.24 = 64,964.79/x
  3. Step 3: Cross multiply
    118,680.93x = 163,781.24 × 64,964.79
  4. Step 4: Simplify right side
    118,680.93x = 10,640,013,537.72
  5. Step 5: Solve for x
    x = 10,640,013,537.72/118,680.93
  6. Step 6: Final answer
    x = 89,652.26

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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.