Home / 147,912.10-221,868.15-121,668.10

Finding the Fourth Proportional to 147,912.10, 221,868.15 and 121,668.10

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Solution

The fourth proportional to 147,912.10, 221,868.15 and 121,668.10 is: 182,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,912.10 : 221,868.15 = 121,668.10 : x
  2. Step 2: Convert to fraction form
    147,912.10/221,868.15 = 121,668.10/x
  3. Step 3: Cross multiply
    147,912.10x = 221,868.15 × 121,668.10
  4. Step 4: Simplify right side
    147,912.10x = 26,994,276,261.02
  5. Step 5: Solve for x
    x = 26,994,276,261.02/147,912.10
  6. Step 6: Final answer
    x = 182,502.15

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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.