Home / 102,253.60-153,328.49-76,719.52

Finding the Fourth Proportional to 102,253.60, 153,328.49 and 76,719.52

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Solution

The fourth proportional to 102,253.60, 153,328.49 and 76,719.52 is: 115,040.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,253.60 : 153,328.49 = 76,719.52 : x
  2. Step 2: Convert to fraction form
    102,253.60/153,328.49 = 76,719.52/x
  3. Step 3: Cross multiply
    102,253.60x = 153,328.49 × 76,719.52
  4. Step 4: Simplify right side
    102,253.60x = 11,763,288,250.89
  5. Step 5: Solve for x
    x = 11,763,288,250.89/102,253.60
  6. Step 6: Final answer
    x = 115,040.33

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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.