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Finding the Fourth Proportional to 112,174.31, 154,800.55 and 61,873.31

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Solution

The fourth proportional to 112,174.31, 154,800.55 and 61,873.31 is: 85,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,174.31 : 154,800.55 = 61,873.31 : x
  2. Step 2: Convert to fraction form
    112,174.31/154,800.55 = 61,873.31/x
  3. Step 3: Cross multiply
    112,174.31x = 154,800.55 × 61,873.31
  4. Step 4: Simplify right side
    112,174.31x = 9,578,022,882.66
  5. Step 5: Solve for x
    x = 9,578,022,882.66/112,174.31
  6. Step 6: Final answer
    x = 85,385.17

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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.