Home / 147,707.46-221,402.03-71,644.95

Finding the Fourth Proportional to 147,707.46, 221,402.03 and 71,644.95

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Solution

The fourth proportional to 147,707.46, 221,402.03 and 71,644.95 is: 107,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,707.46 : 221,402.03 = 71,644.95 : x
  2. Step 2: Convert to fraction form
    147,707.46/221,402.03 = 71,644.95/x
  3. Step 3: Cross multiply
    147,707.46x = 221,402.03 × 71,644.95
  4. Step 4: Simplify right side
    147,707.46x = 15,862,337,011.02
  5. Step 5: Solve for x
    x = 15,862,337,011.02/147,707.46
  6. Step 6: Final answer
    x = 107,390.22

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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.