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Finding the Fourth Proportional to 144,247.84, 199,061.52 and 79,715.28

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Solution

The fourth proportional to 144,247.84, 199,061.52 and 79,715.28 is: 110,006.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,247.84 : 199,061.52 = 79,715.28 : x
  2. Step 2: Convert to fraction form
    144,247.84/199,061.52 = 79,715.28/x
  3. Step 3: Cross multiply
    144,247.84x = 199,061.52 × 79,715.28
  4. Step 4: Simplify right side
    144,247.84x = 15,868,244,804.03
  5. Step 5: Solve for x
    x = 15,868,244,804.03/144,247.84
  6. Step 6: Final answer
    x = 110,006.81

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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.