Home / 112,832.65-155,702.73-61,835.66

Finding the Fourth Proportional to 112,832.65, 155,702.73 and 61,835.66

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Solution

The fourth proportional to 112,832.65, 155,702.73 and 61,835.66 is: 85,329.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,832.65 : 155,702.73 = 61,835.66 : x
  2. Step 2: Convert to fraction form
    112,832.65/155,702.73 = 61,835.66/x
  3. Step 3: Cross multiply
    112,832.65x = 155,702.73 × 61,835.66
  4. Step 4: Simplify right side
    112,832.65x = 9,627,981,073.35
  5. Step 5: Solve for x
    x = 9,627,981,073.35/112,832.65
  6. Step 6: Final answer
    x = 85,329.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.