Home / 147,515.05-221,218.32-52,719.61

Finding the Fourth Proportional to 147,515.05, 221,218.32 and 52,719.61

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Solution

The fourth proportional to 147,515.05, 221,218.32 and 52,719.61 is: 79,060.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,515.05 : 221,218.32 = 52,719.61 : x
  2. Step 2: Convert to fraction form
    147,515.05/221,218.32 = 52,719.61/x
  3. Step 3: Cross multiply
    147,515.05x = 221,218.32 × 52,719.61
  4. Step 4: Simplify right side
    147,515.05x = 11,662,543,169.87
  5. Step 5: Solve for x
    x = 11,662,543,169.87/147,515.05
  6. Step 6: Final answer
    x = 79,060.02

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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.