Home / 113,781.24-157,008.78-63,479.16

Finding the Fourth Proportional to 113,781.24, 157,008.78 and 63,479.16

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Solution

The fourth proportional to 113,781.24, 157,008.78 and 63,479.16 is: 87,596.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,781.24 : 157,008.78 = 63,479.16 : x
  2. Step 2: Convert to fraction form
    113,781.24/157,008.78 = 63,479.16/x
  3. Step 3: Cross multiply
    113,781.24x = 157,008.78 × 63,479.16
  4. Step 4: Simplify right side
    113,781.24x = 9,966,785,467.02
  5. Step 5: Solve for x
    x = 9,966,785,467.02/113,781.24
  6. Step 6: Final answer
    x = 87,596.03

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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.