Home / 147,726.78-221,259.68-68,722.62

Finding the Fourth Proportional to 147,726.78, 221,259.68 and 68,722.62

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Solution

The fourth proportional to 147,726.78, 221,259.68 and 68,722.62 is: 102,930.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,726.78 : 221,259.68 = 68,722.62 : x
  2. Step 2: Convert to fraction form
    147,726.78/221,259.68 = 68,722.62/x
  3. Step 3: Cross multiply
    147,726.78x = 221,259.68 × 68,722.62
  4. Step 4: Simplify right side
    147,726.78x = 15,205,544,909.96
  5. Step 5: Solve for x
    x = 15,205,544,909.96/147,726.78
  6. Step 6: Final answer
    x = 102,930.19

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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.