Home / 118,132.71-163,095.41-72,872.54

Finding the Fourth Proportional to 118,132.71, 163,095.41 and 72,872.54

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Solution

The fourth proportional to 118,132.71, 163,095.41 and 72,872.54 is: 100,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,132.71 : 163,095.41 = 72,872.54 : x
  2. Step 2: Convert to fraction form
    118,132.71/163,095.41 = 72,872.54/x
  3. Step 3: Cross multiply
    118,132.71x = 163,095.41 × 72,872.54
  4. Step 4: Simplify right side
    118,132.71x = 11,885,176,357.45
  5. Step 5: Solve for x
    x = 11,885,176,357.45/118,132.71
  6. Step 6: Final answer
    x = 100,608.69

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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.