Home / 98,729.33-136,149.39-90,533.55

Finding the Fourth Proportional to 98,729.33, 136,149.39 and 90,533.55

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Solution

The fourth proportional to 98,729.33, 136,149.39 and 90,533.55 is: 124,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,729.33 : 136,149.39 = 90,533.55 : x
  2. Step 2: Convert to fraction form
    98,729.33/136,149.39 = 90,533.55/x
  3. Step 3: Cross multiply
    98,729.33x = 136,149.39 × 90,533.55
  4. Step 4: Simplify right side
    98,729.33x = 12,326,087,607.03
  5. Step 5: Solve for x
    x = 12,326,087,607.03/98,729.33
  6. Step 6: Final answer
    x = 124,847.28

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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.