Home / 102,948.40-154,422.60-43,769.20

Finding the Fourth Proportional to 102,948.40, 154,422.60 and 43,769.20

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Solution

The fourth proportional to 102,948.40, 154,422.60 and 43,769.20 is: 65,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,948.40 : 154,422.60 = 43,769.20 : x
  2. Step 2: Convert to fraction form
    102,948.40/154,422.60 = 43,769.20/x
  3. Step 3: Cross multiply
    102,948.40x = 154,422.60 × 43,769.20
  4. Step 4: Simplify right side
    102,948.40x = 6,758,953,663.92
  5. Step 5: Solve for x
    x = 6,758,953,663.92/102,948.40
  6. Step 6: Final answer
    x = 65,653.80

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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.