Home / 102,921.60-154,382.40-96,700.80

Finding the Fourth Proportional to 102,921.60, 154,382.40 and 96,700.80

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Solution

The fourth proportional to 102,921.60, 154,382.40 and 96,700.80 is: 145,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,921.60 : 154,382.40 = 96,700.80 : x
  2. Step 2: Convert to fraction form
    102,921.60/154,382.40 = 96,700.80/x
  3. Step 3: Cross multiply
    102,921.60x = 154,382.40 × 96,700.80
  4. Step 4: Simplify right side
    102,921.60x = 14,928,901,585.92
  5. Step 5: Solve for x
    x = 14,928,901,585.92/102,921.60
  6. Step 6: Final answer
    x = 145,051.20

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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.