Home / 115,648.43-159,506.77-99,543.14

Finding the Fourth Proportional to 115,648.43, 159,506.77 and 99,543.14

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Solution

The fourth proportional to 115,648.43, 159,506.77 and 99,543.14 is: 137,293.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,648.43 : 159,506.77 = 99,543.14 : x
  2. Step 2: Convert to fraction form
    115,648.43/159,506.77 = 99,543.14/x
  3. Step 3: Cross multiply
    115,648.43x = 159,506.77 × 99,543.14
  4. Step 4: Simplify right side
    115,648.43x = 15,877,805,372.69
  5. Step 5: Solve for x
    x = 15,877,805,372.69/115,648.43
  6. Step 6: Final answer
    x = 137,293.75

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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.