Home / 147,578.31-221,432.27-77,441.22

Finding the Fourth Proportional to 147,578.31, 221,432.27 and 77,441.22

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Solution

The fourth proportional to 147,578.31, 221,432.27 and 77,441.22 is: 116,195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,578.31 : 221,432.27 = 77,441.22 : x
  2. Step 2: Convert to fraction form
    147,578.31/221,432.27 = 77,441.22/x
  3. Step 3: Cross multiply
    147,578.31x = 221,432.27 × 77,441.22
  4. Step 4: Simplify right side
    147,578.31x = 17,147,984,748.96
  5. Step 5: Solve for x
    x = 17,147,984,748.96/147,578.31
  6. Step 6: Final answer
    x = 116,195.83

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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.