Home / 112,964.79-155,891.60-62,663.79

Finding the Fourth Proportional to 112,964.79, 155,891.60 and 62,663.79

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Solution

The fourth proportional to 112,964.79, 155,891.60 and 62,663.79 is: 86,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,964.79 : 155,891.60 = 62,663.79 : x
  2. Step 2: Convert to fraction form
    112,964.79/155,891.60 = 62,663.79/x
  3. Step 3: Cross multiply
    112,964.79x = 155,891.60 × 62,663.79
  4. Step 4: Simplify right side
    112,964.79x = 9,768,758,171.85
  5. Step 5: Solve for x
    x = 9,768,758,171.85/112,964.79
  6. Step 6: Final answer
    x = 86,476.13

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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.