Home / 143,925.76-198,617.04-80,261.92

Finding the Fourth Proportional to 143,925.76, 198,617.04 and 80,261.92

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Solution

The fourth proportional to 143,925.76, 198,617.04 and 80,261.92 is: 110,761.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,925.76 : 198,617.04 = 80,261.92 : x
  2. Step 2: Convert to fraction form
    143,925.76/198,617.04 = 80,261.92/x
  3. Step 3: Cross multiply
    143,925.76x = 198,617.04 × 80,261.92
  4. Step 4: Simplify right side
    143,925.76x = 15,941,384,975.12
  5. Step 5: Solve for x
    x = 15,941,384,975.12/143,925.76
  6. Step 6: Final answer
    x = 110,761.17

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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.