Home / 110,141.12-151,981.31-61,731.87

Finding the Fourth Proportional to 110,141.12, 151,981.31 and 61,731.87

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Solution

The fourth proportional to 110,141.12, 151,981.31 and 61,731.87 is: 85,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,141.12 : 151,981.31 = 61,731.87 : x
  2. Step 2: Convert to fraction form
    110,141.12/151,981.31 = 61,731.87/x
  3. Step 3: Cross multiply
    110,141.12x = 151,981.31 × 61,731.87
  4. Step 4: Simplify right side
    110,141.12x = 9,382,090,910.64
  5. Step 5: Solve for x
    x = 9,382,090,910.64/110,141.12
  6. Step 6: Final answer
    x = 85,182.46

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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.