Home / 140,072.46-193,272.51-79,632.69

Finding the Fourth Proportional to 140,072.46, 193,272.51 and 79,632.69

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Solution

The fourth proportional to 140,072.46, 193,272.51 and 79,632.69 is: 109,877.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,072.46 : 193,272.51 = 79,632.69 : x
  2. Step 2: Convert to fraction form
    140,072.46/193,272.51 = 79,632.69/x
  3. Step 3: Cross multiply
    140,072.46x = 193,272.51 × 79,632.69
  4. Step 4: Simplify right side
    140,072.46x = 15,390,809,874.35
  5. Step 5: Solve for x
    x = 15,390,809,874.35/140,072.46
  6. Step 6: Final answer
    x = 109,877.49

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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.