Home / 162,979.12-224,920.64-91,382.18

Finding the Fourth Proportional to 162,979.12, 224,920.64 and 91,382.18

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Solution

The fourth proportional to 162,979.12, 224,920.64 and 91,382.18 is: 126,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,979.12 : 224,920.64 = 91,382.18 : x
  2. Step 2: Convert to fraction form
    162,979.12/224,920.64 = 91,382.18/x
  3. Step 3: Cross multiply
    162,979.12x = 224,920.64 × 91,382.18
  4. Step 4: Simplify right side
    162,979.12x = 20,553,737,953.28
  5. Step 5: Solve for x
    x = 20,553,737,953.28/162,979.12
  6. Step 6: Final answer
    x = 126,112.71

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1.5x scale

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.