Home / 143,901.36-198,569.40-80,233.20

Finding the Fourth Proportional to 143,901.36, 198,569.40 and 80,233.20

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Solution

The fourth proportional to 143,901.36, 198,569.40 and 80,233.20 is: 110,713.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,901.36 : 198,569.40 = 80,233.20 : x
  2. Step 2: Convert to fraction form
    143,901.36/198,569.40 = 80,233.20/x
  3. Step 3: Cross multiply
    143,901.36x = 198,569.40 × 80,233.20
  4. Step 4: Simplify right side
    143,901.36x = 15,931,858,384.08
  5. Step 5: Solve for x
    x = 15,931,858,384.08/143,901.36
  6. Step 6: Final answer
    x = 110,713.74

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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.