Home / 118,002.76-162,856.92-72,671.80

Finding the Fourth Proportional to 118,002.76, 162,856.92 and 72,671.80

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Solution

The fourth proportional to 118,002.76, 162,856.92 and 72,671.80 is: 100,295.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,002.76 : 162,856.92 = 72,671.80 : x
  2. Step 2: Convert to fraction form
    118,002.76/162,856.92 = 72,671.80/x
  3. Step 3: Cross multiply
    118,002.76x = 162,856.92 × 72,671.80
  4. Step 4: Simplify right side
    118,002.76x = 11,835,105,518.86
  5. Step 5: Solve for x
    x = 11,835,105,518.86/118,002.76
  6. Step 6: Final answer
    x = 100,295.16

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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.