Home / 118,223.24-163,148.08-75,781.86

Finding the Fourth Proportional to 118,223.24, 163,148.08 and 75,781.86

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Solution

The fourth proportional to 118,223.24, 163,148.08 and 75,781.86 is: 104,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,223.24 : 163,148.08 = 75,781.86 : x
  2. Step 2: Convert to fraction form
    118,223.24/163,148.08 = 75,781.86/x
  3. Step 3: Cross multiply
    118,223.24x = 163,148.08 × 75,781.86
  4. Step 4: Simplify right side
    118,223.24x = 12,363,664,957.83
  5. Step 5: Solve for x
    x = 12,363,664,957.83/118,223.24
  6. Step 6: Final answer
    x = 104,578.97

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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.