Home / 128,761.02-193,169.34-52,859.70

Finding the Fourth Proportional to 128,761.02, 193,169.34 and 52,859.70

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Solution

The fourth proportional to 128,761.02, 193,169.34 and 52,859.70 is: 79,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,761.02 : 193,169.34 = 52,859.70 : x
  2. Step 2: Convert to fraction form
    128,761.02/193,169.34 = 52,859.70/x
  3. Step 3: Cross multiply
    128,761.02x = 193,169.34 × 52,859.70
  4. Step 4: Simplify right side
    128,761.02x = 10,210,873,361.60
  5. Step 5: Solve for x
    x = 10,210,873,361.60/128,761.02
  6. Step 6: Final answer
    x = 79,300.97

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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.