Home / 147,972.30-221,974.65-143,306.70

Finding the Fourth Proportional to 147,972.30, 221,974.65 and 143,306.70

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Solution

The fourth proportional to 147,972.30, 221,974.65 and 143,306.70 is: 214,975.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,972.30 : 221,974.65 = 143,306.70 : x
  2. Step 2: Convert to fraction form
    147,972.30/221,974.65 = 143,306.70/x
  3. Step 3: Cross multiply
    147,972.30x = 221,974.65 × 143,306.70
  4. Step 4: Simplify right side
    147,972.30x = 31,810,454,575.16
  5. Step 5: Solve for x
    x = 31,810,454,575.16/147,972.30
  6. Step 6: Final answer
    x = 214,975.74

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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.