Home / 147,005.68-220,333.48-102,390.80

Finding the Fourth Proportional to 147,005.68, 220,333.48 and 102,390.80

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Solution

The fourth proportional to 147,005.68, 220,333.48 and 102,390.80 is: 153,464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,005.68 : 220,333.48 = 102,390.80 : x
  2. Step 2: Convert to fraction form
    147,005.68/220,333.48 = 102,390.80/x
  3. Step 3: Cross multiply
    147,005.68x = 220,333.48 × 102,390.80
  4. Step 4: Simplify right side
    147,005.68x = 22,560,121,283.98
  5. Step 5: Solve for x
    x = 22,560,121,283.98/147,005.68
  6. Step 6: Final answer
    x = 153,464.28

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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.