Home / 147,228.47-220,863.96-72,352.88

Finding the Fourth Proportional to 147,228.47, 220,863.96 and 72,352.88

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Solution

The fourth proportional to 147,228.47, 220,863.96 and 72,352.88 is: 108,539.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,228.47 : 220,863.96 = 72,352.88 : x
  2. Step 2: Convert to fraction form
    147,228.47/220,863.96 = 72,352.88/x
  3. Step 3: Cross multiply
    147,228.47x = 220,863.96 × 72,352.88
  4. Step 4: Simplify right side
    147,228.47x = 15,980,143,594.20
  5. Step 5: Solve for x
    x = 15,980,143,594.20/147,228.47
  6. Step 6: Final answer
    x = 108,539.77

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1.5x scale

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.