Home / 128,933.92-177,926.01-71,569.92

Finding the Fourth Proportional to 128,933.92, 177,926.01 and 71,569.92

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Solution

The fourth proportional to 128,933.92, 177,926.01 and 71,569.92 is: 98,764.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,933.92 : 177,926.01 = 71,569.92 : x
  2. Step 2: Convert to fraction form
    128,933.92/177,926.01 = 71,569.92/x
  3. Step 3: Cross multiply
    128,933.92x = 177,926.01 × 71,569.92
  4. Step 4: Simplify right side
    128,933.92x = 12,734,150,033.23
  5. Step 5: Solve for x
    x = 12,734,150,033.23/128,933.92
  6. Step 6: Final answer
    x = 98,764.94

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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.