Home / 98,116.71-135,405.23-55,679.19

Finding the Fourth Proportional to 98,116.71, 135,405.23 and 55,679.19

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Solution

The fourth proportional to 98,116.71, 135,405.23 and 55,679.19 is: 76,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,116.71 : 135,405.23 = 55,679.19 : x
  2. Step 2: Convert to fraction form
    98,116.71/135,405.23 = 55,679.19/x
  3. Step 3: Cross multiply
    98,116.71x = 135,405.23 × 55,679.19
  4. Step 4: Simplify right side
    98,116.71x = 7,539,253,528.16
  5. Step 5: Solve for x
    x = 7,539,253,528.16/98,116.71
  6. Step 6: Final answer
    x = 76,839.65

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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.