Home / 128,844.04-193,278.35-40,073.71

Finding the Fourth Proportional to 128,844.04, 193,278.35 and 40,073.71

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Solution

The fourth proportional to 128,844.04, 193,278.35 and 40,073.71 is: 60,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,844.04 : 193,278.35 = 40,073.71 : x
  2. Step 2: Convert to fraction form
    128,844.04/193,278.35 = 40,073.71/x
  3. Step 3: Cross multiply
    128,844.04x = 193,278.35 × 40,073.71
  4. Step 4: Simplify right side
    128,844.04x = 7,745,379,580.79
  5. Step 5: Solve for x
    x = 7,745,379,580.79/128,844.04
  6. Step 6: Final answer
    x = 60,114.38

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1.5x scale

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.