Home / 144,011.28-198,726.12-90,294

Finding the Fourth Proportional to 144,011.28, 198,726.12 and 90,294

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Solution

The fourth proportional to 144,011.28, 198,726.12 and 90,294 is: 124,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,011.28 : 198,726.12 = 90,294 : x
  2. Step 2: Convert to fraction form
    144,011.28/198,726.12 = 90,294/x
  3. Step 3: Cross multiply
    144,011.28x = 198,726.12 × 90,294
  4. Step 4: Simplify right side
    144,011.28x = 17,943,776,279.28
  5. Step 5: Solve for x
    x = 17,943,776,279.28/144,011.28
  6. Step 6: Final answer
    x = 124,599.80

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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.