Home / 112,218.41-154,721.33-71,865.83

Finding the Fourth Proportional to 112,218.41, 154,721.33 and 71,865.83

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Solution

The fourth proportional to 112,218.41, 154,721.33 and 71,865.83 is: 99,085.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.41 : 154,721.33 = 71,865.83 : x
  2. Step 2: Convert to fraction form
    112,218.41/154,721.33 = 71,865.83/x
  3. Step 3: Cross multiply
    112,218.41x = 154,721.33 × 71,865.83
  4. Step 4: Simplify right side
    112,218.41x = 11,119,175,666.22
  5. Step 5: Solve for x
    x = 11,119,175,666.22/112,218.41
  6. Step 6: Final answer
    x = 99,085.13

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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.