Home / 147,319.11-220,830.71-47,405.88

Finding the Fourth Proportional to 147,319.11, 220,830.71 and 47,405.88

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Solution

The fourth proportional to 147,319.11, 220,830.71 and 47,405.88 is: 71,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,319.11 : 220,830.71 = 47,405.88 : x
  2. Step 2: Convert to fraction form
    147,319.11/220,830.71 = 47,405.88/x
  3. Step 3: Cross multiply
    147,319.11x = 220,830.71 × 47,405.88
  4. Step 4: Simplify right side
    147,319.11x = 10,468,673,901.55
  5. Step 5: Solve for x
    x = 10,468,673,901.55/147,319.11
  6. Step 6: Final answer
    x = 71,061.21

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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.