Home / 156,975.40-235,463.10-57,138.85

Finding the Fourth Proportional to 156,975.40, 235,463.10 and 57,138.85

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Solution

The fourth proportional to 156,975.40, 235,463.10 and 57,138.85 is: 85,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.40 : 235,463.10 = 57,138.85 : x
  2. Step 2: Convert to fraction form
    156,975.40/235,463.10 = 57,138.85/x
  3. Step 3: Cross multiply
    156,975.40x = 235,463.10 × 57,138.85
  4. Step 4: Simplify right side
    156,975.40x = 13,454,090,751.44
  5. Step 5: Solve for x
    x = 13,454,090,751.44/156,975.40
  6. Step 6: Final answer
    x = 85,708.28

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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.