Home / 112,839.40-155,734.95-65,083.42

Finding the Fourth Proportional to 112,839.40, 155,734.95 and 65,083.42

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Solution

The fourth proportional to 112,839.40, 155,734.95 and 65,083.42 is: 89,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,839.40 : 155,734.95 = 65,083.42 : x
  2. Step 2: Convert to fraction form
    112,839.40/155,734.95 = 65,083.42/x
  3. Step 3: Cross multiply
    112,839.40x = 155,734.95 × 65,083.42
  4. Step 4: Simplify right side
    112,839.40x = 10,135,763,159.53
  5. Step 5: Solve for x
    x = 10,135,763,159.53/112,839.40
  6. Step 6: Final answer
    x = 89,824.68

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1.5x scale

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.