Home / 123,743.76-170,764.56-70,038.96

Finding the Fourth Proportional to 123,743.76, 170,764.56 and 70,038.96

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Solution

The fourth proportional to 123,743.76, 170,764.56 and 70,038.96 is: 96,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,743.76 : 170,764.56 = 70,038.96 : x
  2. Step 2: Convert to fraction form
    123,743.76/170,764.56 = 70,038.96/x
  3. Step 3: Cross multiply
    123,743.76x = 170,764.56 × 70,038.96
  4. Step 4: Simplify right side
    123,743.76x = 11,960,172,187.26
  5. Step 5: Solve for x
    x = 11,960,172,187.26/123,743.76
  6. Step 6: Final answer
    x = 96,652.73

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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.