Home / 115,649.43-159,508.15-99,544.14

Finding the Fourth Proportional to 115,649.43, 159,508.15 and 99,544.14

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Solution

The fourth proportional to 115,649.43, 159,508.15 and 99,544.14 is: 137,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,649.43 : 159,508.15 = 99,544.14 : x
  2. Step 2: Convert to fraction form
    115,649.43/159,508.15 = 99,544.14/x
  3. Step 3: Cross multiply
    115,649.43x = 159,508.15 × 99,544.14
  4. Step 4: Simplify right side
    115,649.43x = 15,878,101,614.74
  5. Step 5: Solve for x
    x = 15,878,101,614.74/115,649.43
  6. Step 6: Final answer
    x = 137,295.11

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1.5x scale

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.