Home / 147,781.98-221,761.29-54,297.18

Finding the Fourth Proportional to 147,781.98, 221,761.29 and 54,297.18

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Solution

The fourth proportional to 147,781.98, 221,761.29 and 54,297.18 is: 81,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,781.98 : 221,761.29 = 54,297.18 : x
  2. Step 2: Convert to fraction form
    147,781.98/221,761.29 = 54,297.18/x
  3. Step 3: Cross multiply
    147,781.98x = 221,761.29 × 54,297.18
  4. Step 4: Simplify right side
    147,781.98x = 12,041,012,680.16
  5. Step 5: Solve for x
    x = 12,041,012,680.16/147,781.98
  6. Step 6: Final answer
    x = 81,478.22

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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.