Home / 156,981.73-235,480.76-51,808.90

Finding the Fourth Proportional to 156,981.73, 235,480.76 and 51,808.90

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Solution

The fourth proportional to 156,981.73, 235,480.76 and 51,808.90 is: 77,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.73 : 235,480.76 = 51,808.90 : x
  2. Step 2: Convert to fraction form
    156,981.73/235,480.76 = 51,808.90/x
  3. Step 3: Cross multiply
    156,981.73x = 235,480.76 × 51,808.90
  4. Step 4: Simplify right side
    156,981.73x = 12,199,999,146.76
  5. Step 5: Solve for x
    x = 12,199,999,146.76/156,981.73
  6. Step 6: Final answer
    x = 77,716.04

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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.