Home / 129,827.92-179,161.86-72,463.93

Finding the Fourth Proportional to 129,827.92, 179,161.86 and 72,463.93

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Solution

The fourth proportional to 129,827.92, 179,161.86 and 72,463.93 is: 99,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,827.92 : 179,161.86 = 72,463.93 : x
  2. Step 2: Convert to fraction form
    129,827.92/179,161.86 = 72,463.93/x
  3. Step 3: Cross multiply
    129,827.92x = 179,161.86 × 72,463.93
  4. Step 4: Simplify right side
    129,827.92x = 12,982,772,977.40
  5. Step 5: Solve for x
    x = 12,982,772,977.40/129,827.92
  6. Step 6: Final answer
    x = 99,999.86

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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.