Home / 98,079.04-135,091.25-75,374.59

Finding the Fourth Proportional to 98,079.04, 135,091.25 and 75,374.59

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Solution

The fourth proportional to 98,079.04, 135,091.25 and 75,374.59 is: 103,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,079.04 : 135,091.25 = 75,374.59 : x
  2. Step 2: Convert to fraction form
    98,079.04/135,091.25 = 75,374.59/x
  3. Step 3: Cross multiply
    98,079.04x = 135,091.25 × 75,374.59
  4. Step 4: Simplify right side
    98,079.04x = 10,182,447,581.34
  5. Step 5: Solve for x
    x = 10,182,447,581.34/98,079.04
  6. Step 6: Final answer
    x = 103,818.79

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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.