Home / 98,681.57-136,181.34-54,480.55

Finding the Fourth Proportional to 98,681.57, 136,181.34 and 54,480.55

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Solution

The fourth proportional to 98,681.57, 136,181.34 and 54,480.55 is: 75,183.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,681.57 : 136,181.34 = 54,480.55 : x
  2. Step 2: Convert to fraction form
    98,681.57/136,181.34 = 54,480.55/x
  3. Step 3: Cross multiply
    98,681.57x = 136,181.34 × 54,480.55
  4. Step 4: Simplify right side
    98,681.57x = 7,419,234,064.60
  5. Step 5: Solve for x
    x = 7,419,234,064.60/98,681.57
  6. Step 6: Final answer
    x = 75,183.58

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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.