Home / 126,432.72-174,482.16-72,717.67

Finding the Fourth Proportional to 126,432.72, 174,482.16 and 72,717.67

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Solution

The fourth proportional to 126,432.72, 174,482.16 and 72,717.67 is: 100,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,432.72 : 174,482.16 = 72,717.67 : x
  2. Step 2: Convert to fraction form
    126,432.72/174,482.16 = 72,717.67/x
  3. Step 3: Cross multiply
    126,432.72x = 174,482.16 × 72,717.67
  4. Step 4: Simplify right side
    126,432.72x = 12,687,936,131.77
  5. Step 5: Solve for x
    x = 12,687,936,131.77/126,432.72
  6. Step 6: Final answer
    x = 100,353.26

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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.