Home / 144,991.20-200,088.08-81,328.80

Finding the Fourth Proportional to 144,991.20, 200,088.08 and 81,328.80

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Solution

The fourth proportional to 144,991.20, 200,088.08 and 81,328.80 is: 112,233.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,991.20 : 200,088.08 = 81,328.80 : x
  2. Step 2: Convert to fraction form
    144,991.20/200,088.08 = 81,328.80/x
  3. Step 3: Cross multiply
    144,991.20x = 200,088.08 × 81,328.80
  4. Step 4: Simplify right side
    144,991.20x = 16,272,923,440.70
  5. Step 5: Solve for x
    x = 16,272,923,440.70/144,991.20
  6. Step 6: Final answer
    x = 112,233.87

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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.