Home / 144,133.50-198,970.56-108,335.04

Finding the Fourth Proportional to 144,133.50, 198,970.56 and 108,335.04

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Solution

The fourth proportional to 144,133.50, 198,970.56 and 108,335.04 is: 149,552.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,133.50 : 198,970.56 = 108,335.04 : x
  2. Step 2: Convert to fraction form
    144,133.50/198,970.56 = 108,335.04/x
  3. Step 3: Cross multiply
    144,133.50x = 198,970.56 × 108,335.04
  4. Step 4: Simplify right side
    144,133.50x = 21,555,483,576.42
  5. Step 5: Solve for x
    x = 21,555,483,576.42/144,133.50
  6. Step 6: Final answer
    x = 149,552.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.