Home / 147,986.19-221,981.31-48,146.90

Finding the Fourth Proportional to 147,986.19, 221,981.31 and 48,146.90

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Solution

The fourth proportional to 147,986.19, 221,981.31 and 48,146.90 is: 72,221.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,986.19 : 221,981.31 = 48,146.90 : x
  2. Step 2: Convert to fraction form
    147,986.19/221,981.31 = 48,146.90/x
  3. Step 3: Cross multiply
    147,986.19x = 221,981.31 × 48,146.90
  4. Step 4: Simplify right side
    147,986.19x = 10,687,710,824.53
  5. Step 5: Solve for x
    x = 10,687,710,824.53/147,986.19
  6. Step 6: Final answer
    x = 72,221.00

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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.