Home / 98,943.34-136,535.06-63,129.39

Finding the Fourth Proportional to 98,943.34, 136,535.06 and 63,129.39

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Solution

The fourth proportional to 98,943.34, 136,535.06 and 63,129.39 is: 87,114.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,943.34 : 136,535.06 = 63,129.39 : x
  2. Step 2: Convert to fraction form
    98,943.34/136,535.06 = 63,129.39/x
  3. Step 3: Cross multiply
    98,943.34x = 136,535.06 × 63,129.39
  4. Step 4: Simplify right side
    98,943.34x = 8,619,375,209.24
  5. Step 5: Solve for x
    x = 8,619,375,209.24/98,943.34
  6. Step 6: Final answer
    x = 87,114.26

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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.