Home / 121,426.80-182,140.20-93,400.80

Finding the Fourth Proportional to 121,426.80, 182,140.20 and 93,400.80

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Solution

The fourth proportional to 121,426.80, 182,140.20 and 93,400.80 is: 140,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,426.80 : 182,140.20 = 93,400.80 : x
  2. Step 2: Convert to fraction form
    121,426.80/182,140.20 = 93,400.80/x
  3. Step 3: Cross multiply
    121,426.80x = 182,140.20 × 93,400.80
  4. Step 4: Simplify right side
    121,426.80x = 17,012,040,392.16
  5. Step 5: Solve for x
    x = 17,012,040,392.16/121,426.80
  6. Step 6: Final answer
    x = 140,101.20

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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.