Home / 156,987.30-235,480.95-51,800.70

Finding the Fourth Proportional to 156,987.30, 235,480.95 and 51,800.70

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Solution

The fourth proportional to 156,987.30, 235,480.95 and 51,800.70 is: 77,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.30 : 235,480.95 = 51,800.70 : x
  2. Step 2: Convert to fraction form
    156,987.30/235,480.95 = 51,800.70/x
  3. Step 3: Cross multiply
    156,987.30x = 235,480.95 × 51,800.70
  4. Step 4: Simplify right side
    156,987.30x = 12,198,078,046.67
  5. Step 5: Solve for x
    x = 12,198,078,046.67/156,987.30
  6. Step 6: Final answer
    x = 77,701.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.