Home / 98,146.90-135,443.38-55,706.14

Finding the Fourth Proportional to 98,146.90, 135,443.38 and 55,706.14

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Solution

The fourth proportional to 98,146.90, 135,443.38 and 55,706.14 is: 76,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,146.90 : 135,443.38 = 55,706.14 : x
  2. Step 2: Convert to fraction form
    98,146.90/135,443.38 = 55,706.14/x
  3. Step 3: Cross multiply
    98,146.90x = 135,443.38 × 55,706.14
  4. Step 4: Simplify right side
    98,146.90x = 7,545,027,888.35
  5. Step 5: Solve for x
    x = 7,545,027,888.35/98,146.90
  6. Step 6: Final answer
    x = 76,874.85

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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.