Home / 98,619.32-136,095.50-91,085.08

Finding the Fourth Proportional to 98,619.32, 136,095.50 and 91,085.08

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Solution

The fourth proportional to 98,619.32, 136,095.50 and 91,085.08 is: 125,698.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,619.32 : 136,095.50 = 91,085.08 : x
  2. Step 2: Convert to fraction form
    98,619.32/136,095.50 = 91,085.08/x
  3. Step 3: Cross multiply
    98,619.32x = 136,095.50 × 91,085.08
  4. Step 4: Simplify right side
    98,619.32x = 12,396,269,505.14
  5. Step 5: Solve for x
    x = 12,396,269,505.14/98,619.32
  6. Step 6: Final answer
    x = 125,698.18

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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.