Home / 121,966.40-182,895.84-38,868.80

Finding the Fourth Proportional to 121,966.40, 182,895.84 and 38,868.80

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Solution

The fourth proportional to 121,966.40, 182,895.84 and 38,868.80 is: 58,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,966.40 : 182,895.84 = 38,868.80 : x
  2. Step 2: Convert to fraction form
    121,966.40/182,895.84 = 38,868.80/x
  3. Step 3: Cross multiply
    121,966.40x = 182,895.84 × 38,868.80
  4. Step 4: Simplify right side
    121,966.40x = 7,108,941,825.79
  5. Step 5: Solve for x
    x = 7,108,941,825.79/121,966.40
  6. Step 6: Final answer
    x = 58,286.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.