Home / 100,922.72-139,266.69-60,612.53

Finding the Fourth Proportional to 100,922.72, 139,266.69 and 60,612.53

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Solution

The fourth proportional to 100,922.72, 139,266.69 and 60,612.53 is: 83,641.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,922.72 : 139,266.69 = 60,612.53 : x
  2. Step 2: Convert to fraction form
    100,922.72/139,266.69 = 60,612.53/x
  3. Step 3: Cross multiply
    100,922.72x = 139,266.69 × 60,612.53
  4. Step 4: Simplify right side
    100,922.72x = 8,441,306,425.63
  5. Step 5: Solve for x
    x = 8,441,306,425.63/100,922.72
  6. Step 6: Final answer
    x = 83,641.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.