Home / 98,921.60-148,382.40-28,803.20

Finding the Fourth Proportional to 98,921.60, 148,382.40 and 28,803.20

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Solution

The fourth proportional to 98,921.60, 148,382.40 and 28,803.20 is: 43,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,921.60 : 148,382.40 = 28,803.20 : x
  2. Step 2: Convert to fraction form
    98,921.60/148,382.40 = 28,803.20/x
  3. Step 3: Cross multiply
    98,921.60x = 148,382.40 × 28,803.20
  4. Step 4: Simplify right side
    98,921.60x = 4,273,887,943.68
  5. Step 5: Solve for x
    x = 4,273,887,943.68/98,921.60
  6. Step 6: Final answer
    x = 43,204.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.