Home / 147,009.78-220,535.28-47,146.50

Finding the Fourth Proportional to 147,009.78, 220,535.28 and 47,146.50

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Solution

The fourth proportional to 147,009.78, 220,535.28 and 47,146.50 is: 70,726.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,009.78 : 220,535.28 = 47,146.50 : x
  2. Step 2: Convert to fraction form
    147,009.78/220,535.28 = 47,146.50/x
  3. Step 3: Cross multiply
    147,009.78x = 220,535.28 × 47,146.50
  4. Step 4: Simplify right side
    147,009.78x = 10,397,466,578.52
  5. Step 5: Solve for x
    x = 10,397,466,578.52/147,009.78
  6. Step 6: Final answer
    x = 70,726.36

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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.