Home / 128,726.15-193,089.24-35,231.90

Finding the Fourth Proportional to 128,726.15, 193,089.24 and 35,231.90

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Solution

The fourth proportional to 128,726.15, 193,089.24 and 35,231.90 is: 52,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,726.15 : 193,089.24 = 35,231.90 : x
  2. Step 2: Convert to fraction form
    128,726.15/193,089.24 = 35,231.90/x
  3. Step 3: Cross multiply
    128,726.15x = 193,089.24 × 35,231.90
  4. Step 4: Simplify right side
    128,726.15x = 6,802,899,829.31
  5. Step 5: Solve for x
    x = 6,802,899,829.31/128,726.15
  6. Step 6: Final answer
    x = 52,847.85

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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.