Home / 103,728.97-143,177.71-60,718.53

Finding the Fourth Proportional to 103,728.97, 143,177.71 and 60,718.53

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Solution

The fourth proportional to 103,728.97, 143,177.71 and 60,718.53 is: 83,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,728.97 : 143,177.71 = 60,718.53 : x
  2. Step 2: Convert to fraction form
    103,728.97/143,177.71 = 60,718.53/x
  3. Step 3: Cross multiply
    103,728.97x = 143,177.71 × 60,718.53
  4. Step 4: Simplify right side
    103,728.97x = 8,693,540,079.97
  5. Step 5: Solve for x
    x = 8,693,540,079.97/103,728.97
  6. Step 6: Final answer
    x = 83,810.15

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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.