Home / 156,981.10-235,471.65-57,253.90

Finding the Fourth Proportional to 156,981.10, 235,471.65 and 57,253.90

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Solution

The fourth proportional to 156,981.10, 235,471.65 and 57,253.90 is: 85,880.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.10 : 235,471.65 = 57,253.90 : x
  2. Step 2: Convert to fraction form
    156,981.10/235,471.65 = 57,253.90/x
  3. Step 3: Cross multiply
    156,981.10x = 235,471.65 × 57,253.90
  4. Step 4: Simplify right side
    156,981.10x = 13,481,670,301.94
  5. Step 5: Solve for x
    x = 13,481,670,301.94/156,981.10
  6. Step 6: Final answer
    x = 85,880.85

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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.