Home / 130,007.43-179,402.04-72,642.42

Finding the Fourth Proportional to 130,007.43, 179,402.04 and 72,642.42

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Solution

The fourth proportional to 130,007.43, 179,402.04 and 72,642.42 is: 100,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,007.43 : 179,402.04 = 72,642.42 : x
  2. Step 2: Convert to fraction form
    130,007.43/179,402.04 = 72,642.42/x
  3. Step 3: Cross multiply
    130,007.43x = 179,402.04 × 72,642.42
  4. Step 4: Simplify right side
    130,007.43x = 13,032,198,338.54
  5. Step 5: Solve for x
    x = 13,032,198,338.54/130,007.43
  6. Step 6: Final answer
    x = 100,241.95

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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.