Home / 98,116.90-135,402.75-55,105.72

Finding the Fourth Proportional to 98,116.90, 135,402.75 and 55,105.72

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Solution

The fourth proportional to 98,116.90, 135,402.75 and 55,105.72 is: 76,046.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,116.90 : 135,402.75 = 55,105.72 : x
  2. Step 2: Convert to fraction form
    98,116.90/135,402.75 = 55,105.72/x
  3. Step 3: Cross multiply
    98,116.90x = 135,402.75 × 55,105.72
  4. Step 4: Simplify right side
    98,116.90x = 7,461,465,690.22
  5. Step 5: Solve for x
    x = 7,461,465,690.22/98,116.90
  6. Step 6: Final answer
    x = 76,046.69

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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.