Home / 98,657.51-136,147.64-62,839.85

Finding the Fourth Proportional to 98,657.51, 136,147.64 and 62,839.85

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Solution

The fourth proportional to 98,657.51, 136,147.64 and 62,839.85 is: 86,719.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,657.51 : 136,147.64 = 62,839.85 : x
  2. Step 2: Convert to fraction form
    98,657.51/136,147.64 = 62,839.85/x
  3. Step 3: Cross multiply
    98,657.51x = 136,147.64 × 62,839.85
  4. Step 4: Simplify right side
    98,657.51x = 8,555,497,275.45
  5. Step 5: Solve for x
    x = 8,555,497,275.45/98,657.51
  6. Step 6: Final answer
    x = 86,719.17

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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.