Home / 128,672.22-193,002.15-35,178.18

Finding the Fourth Proportional to 128,672.22, 193,002.15 and 35,178.18

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Solution

The fourth proportional to 128,672.22, 193,002.15 and 35,178.18 is: 52,765.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,672.22 : 193,002.15 = 35,178.18 : x
  2. Step 2: Convert to fraction form
    128,672.22/193,002.15 = 35,178.18/x
  3. Step 3: Cross multiply
    128,672.22x = 193,002.15 × 35,178.18
  4. Step 4: Simplify right side
    128,672.22x = 6,789,464,373.09
  5. Step 5: Solve for x
    x = 6,789,464,373.09/128,672.22
  6. Step 6: Final answer
    x = 52,765.58

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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.