Home / 112,764.65-155,615.40-61,776.27

Finding the Fourth Proportional to 112,764.65, 155,615.40 and 61,776.27

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Solution

The fourth proportional to 112,764.65, 155,615.40 and 61,776.27 is: 85,251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,764.65 : 155,615.40 = 61,776.27 : x
  2. Step 2: Convert to fraction form
    112,764.65/155,615.40 = 61,776.27/x
  3. Step 3: Cross multiply
    112,764.65x = 155,615.40 × 61,776.27
  4. Step 4: Simplify right side
    112,764.65x = 9,613,338,966.56
  5. Step 5: Solve for x
    x = 9,613,338,966.56/112,764.65
  6. Step 6: Final answer
    x = 85,251.36

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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.