Home / 156,981.15-235,471.73-57,144.60

Finding the Fourth Proportional to 156,981.15, 235,471.73 and 57,144.60

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Solution

The fourth proportional to 156,981.15, 235,471.73 and 57,144.60 is: 85,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.15 : 235,471.73 = 57,144.60 : x
  2. Step 2: Convert to fraction form
    156,981.15/235,471.73 = 57,144.60/x
  3. Step 3: Cross multiply
    156,981.15x = 235,471.73 × 57,144.60
  4. Step 4: Simplify right side
    156,981.15x = 13,455,937,822.16
  5. Step 5: Solve for x
    x = 13,455,937,822.16/156,981.15
  6. Step 6: Final answer
    x = 85,716.90

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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.