Home / 129,288.78-193,895.28-50,384.16

Finding the Fourth Proportional to 129,288.78, 193,895.28 and 50,384.16

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Solution

The fourth proportional to 129,288.78, 193,895.28 and 50,384.16 is: 75,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,288.78 : 193,895.28 = 50,384.16 : x
  2. Step 2: Convert to fraction form
    129,288.78/193,895.28 = 50,384.16/x
  3. Step 3: Cross multiply
    129,288.78x = 193,895.28 × 50,384.16
  4. Step 4: Simplify right side
    129,288.78x = 9,769,250,810.76
  5. Step 5: Solve for x
    x = 9,769,250,810.76/129,288.78
  6. Step 6: Final answer
    x = 75,561.47

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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.