Home / 147,387.47-221,097.67-52,639.61

Finding the Fourth Proportional to 147,387.47, 221,097.67 and 52,639.61

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Solution

The fourth proportional to 147,387.47, 221,097.67 and 52,639.61 is: 78,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,387.47 : 221,097.67 = 52,639.61 : x
  2. Step 2: Convert to fraction form
    147,387.47/221,097.67 = 52,639.61/x
  3. Step 3: Cross multiply
    147,387.47x = 221,097.67 × 52,639.61
  4. Step 4: Simplify right side
    147,387.47x = 11,638,493,883.62
  5. Step 5: Solve for x
    x = 11,638,493,883.62/147,387.47
  6. Step 6: Final answer
    x = 78,965.29

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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.