Home / 156,743.35-235,115.03-112,784.65

Finding the Fourth Proportional to 156,743.35, 235,115.03 and 112,784.65

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Solution

The fourth proportional to 156,743.35, 235,115.03 and 112,784.65 is: 169,176.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,743.35 : 235,115.03 = 112,784.65 : x
  2. Step 2: Convert to fraction form
    156,743.35/235,115.03 = 112,784.65/x
  3. Step 3: Cross multiply
    156,743.35x = 235,115.03 × 112,784.65
  4. Step 4: Simplify right side
    156,743.35x = 26,517,366,368.29
  5. Step 5: Solve for x
    x = 26,517,366,368.29/156,743.35
  6. Step 6: Final answer
    x = 169,176.98

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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.