Home / 124,369.72-171,581.40-76,540.03

Finding the Fourth Proportional to 124,369.72, 171,581.40 and 76,540.03

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Solution

The fourth proportional to 124,369.72, 171,581.40 and 76,540.03 is: 105,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,369.72 : 171,581.40 = 76,540.03 : x
  2. Step 2: Convert to fraction form
    124,369.72/171,581.40 = 76,540.03/x
  3. Step 3: Cross multiply
    124,369.72x = 171,581.40 × 76,540.03
  4. Step 4: Simplify right side
    124,369.72x = 13,132,845,503.44
  5. Step 5: Solve for x
    x = 13,132,845,503.44/124,369.72
  6. Step 6: Final answer
    x = 105,595.20

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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.