Home / 121,960.17-182,940.28-80,397.45

Finding the Fourth Proportional to 121,960.17, 182,940.28 and 80,397.45

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Solution

The fourth proportional to 121,960.17, 182,940.28 and 80,397.45 is: 120,596.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,960.17 : 182,940.28 = 80,397.45 : x
  2. Step 2: Convert to fraction form
    121,960.17/182,940.28 = 80,397.45/x
  3. Step 3: Cross multiply
    121,960.17x = 182,940.28 × 80,397.45
  4. Step 4: Simplify right side
    121,960.17x = 14,707,931,813.29
  5. Step 5: Solve for x
    x = 14,707,931,813.29/121,960.17
  6. Step 6: Final answer
    x = 120,596.19

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1.5x scale

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.