Home / 129,827.34-179,163.06-72,472.04

Finding the Fourth Proportional to 129,827.34, 179,163.06 and 72,472.04

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Solution

The fourth proportional to 129,827.34, 179,163.06 and 72,472.04 is: 100,012.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,827.34 : 179,163.06 = 72,472.04 : x
  2. Step 2: Convert to fraction form
    129,827.34/179,163.06 = 72,472.04/x
  3. Step 3: Cross multiply
    129,827.34x = 179,163.06 × 72,472.04
  4. Step 4: Simplify right side
    129,827.34x = 12,984,312,450.84
  5. Step 5: Solve for x
    x = 12,984,312,450.84/129,827.34
  6. Step 6: Final answer
    x = 100,012.16

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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.