Home / 102,138.48-153,351.24-52,254.36

Finding the Fourth Proportional to 102,138.48, 153,351.24 and 52,254.36

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Solution

The fourth proportional to 102,138.48, 153,351.24 and 52,254.36 is: 78,454.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,138.48 : 153,351.24 = 52,254.36 : x
  2. Step 2: Convert to fraction form
    102,138.48/153,351.24 = 52,254.36/x
  3. Step 3: Cross multiply
    102,138.48x = 153,351.24 × 52,254.36
  4. Step 4: Simplify right side
    102,138.48x = 8,013,270,901.41
  5. Step 5: Solve for x
    x = 8,013,270,901.41/102,138.48
  6. Step 6: Final answer
    x = 78,454.97

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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.