Home / 147,624.90-221,286.15-72,629.70

Finding the Fourth Proportional to 147,624.90, 221,286.15 and 72,629.70

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Solution

The fourth proportional to 147,624.90, 221,286.15 and 72,629.70 is: 108,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,624.90 : 221,286.15 = 72,629.70 : x
  2. Step 2: Convert to fraction form
    147,624.90/221,286.15 = 72,629.70/x
  3. Step 3: Cross multiply
    147,624.90x = 221,286.15 × 72,629.70
  4. Step 4: Simplify right side
    147,624.90x = 16,071,946,688.66
  5. Step 5: Solve for x
    x = 16,071,946,688.66/147,624.90
  6. Step 6: Final answer
    x = 108,870.16

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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.