Home / 118,780.19-163,916.70-65,067.13

Finding the Fourth Proportional to 118,780.19, 163,916.70 and 65,067.13

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Solution

The fourth proportional to 118,780.19, 163,916.70 and 65,067.13 is: 89,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,780.19 : 163,916.70 = 65,067.13 : x
  2. Step 2: Convert to fraction form
    118,780.19/163,916.70 = 65,067.13/x
  3. Step 3: Cross multiply
    118,780.19x = 163,916.70 × 65,067.13
  4. Step 4: Simplify right side
    118,780.19x = 10,665,589,188.97
  5. Step 5: Solve for x
    x = 10,665,589,188.97/118,780.19
  6. Step 6: Final answer
    x = 89,792.66

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1.5x scale

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.