Home / 147,390.20-221,128.37-47,548.19

Finding the Fourth Proportional to 147,390.20, 221,128.37 and 47,548.19

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Solution

The fourth proportional to 147,390.20, 221,128.37 and 47,548.19 is: 71,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,390.20 : 221,128.37 = 47,548.19 : x
  2. Step 2: Convert to fraction form
    147,390.20/221,128.37 = 47,548.19/x
  3. Step 3: Cross multiply
    147,390.20x = 221,128.37 × 47,548.19
  4. Step 4: Simplify right side
    147,390.20x = 10,514,253,751.15
  5. Step 5: Solve for x
    x = 10,514,253,751.15/147,390.20
  6. Step 6: Final answer
    x = 71,336.18

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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.