Home / 139,239.74-192,151.04-75,577.55

Finding the Fourth Proportional to 139,239.74, 192,151.04 and 75,577.55

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Solution

The fourth proportional to 139,239.74, 192,151.04 and 75,577.55 is: 104,297.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,239.74 : 192,151.04 = 75,577.55 : x
  2. Step 2: Convert to fraction form
    139,239.74/192,151.04 = 75,577.55/x
  3. Step 3: Cross multiply
    139,239.74x = 192,151.04 × 75,577.55
  4. Step 4: Simplify right side
    139,239.74x = 14,522,304,833.15
  5. Step 5: Solve for x
    x = 14,522,304,833.15/139,239.74
  6. Step 6: Final answer
    x = 104,297.13

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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.