Home / 147,615.80-221,423.70-54,109.40

Finding the Fourth Proportional to 147,615.80, 221,423.70 and 54,109.40

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Solution

The fourth proportional to 147,615.80, 221,423.70 and 54,109.40 is: 81,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,615.80 : 221,423.70 = 54,109.40 : x
  2. Step 2: Convert to fraction form
    147,615.80/221,423.70 = 54,109.40/x
  3. Step 3: Cross multiply
    147,615.80x = 221,423.70 × 54,109.40
  4. Step 4: Simplify right side
    147,615.80x = 11,981,103,552.78
  5. Step 5: Solve for x
    x = 11,981,103,552.78/147,615.80
  6. Step 6: Final answer
    x = 81,164.10

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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.