Home / 230,529.61-318,132.26-128,561.52

Finding the Fourth Proportional to 230,529.61, 318,132.26 and 128,561.52

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Solution

The fourth proportional to 230,529.61, 318,132.26 and 128,561.52 is: 177,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,529.61 : 318,132.26 = 128,561.52 : x
  2. Step 2: Convert to fraction form
    230,529.61/318,132.26 = 128,561.52/x
  3. Step 3: Cross multiply
    230,529.61x = 318,132.26 × 128,561.52
  4. Step 4: Simplify right side
    230,529.61x = 40,899,566,906.64
  5. Step 5: Solve for x
    x = 40,899,566,906.64/230,529.61
  6. Step 6: Final answer
    x = 177,415.68

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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.