Home / 112,715.38-168,823.83-77,092.24

Finding the Fourth Proportional to 112,715.38, 168,823.83 and 77,092.24

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Solution

The fourth proportional to 112,715.38, 168,823.83 and 77,092.24 is: 115,467.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,715.38 : 168,823.83 = 77,092.24 : x
  2. Step 2: Convert to fraction form
    112,715.38/168,823.83 = 77,092.24/x
  3. Step 3: Cross multiply
    112,715.38x = 168,823.83 × 77,092.24
  4. Step 4: Simplify right side
    112,715.38x = 13,015,007,220.08
  5. Step 5: Solve for x
    x = 13,015,007,220.08/112,715.38
  6. Step 6: Final answer
    x = 115,467.89

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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.