Home / 112,743.30-155,585.43-62,442.30

Finding the Fourth Proportional to 112,743.30, 155,585.43 and 62,442.30

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Solution

The fourth proportional to 112,743.30, 155,585.43 and 62,442.30 is: 86,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,743.30 : 155,585.43 = 62,442.30 : x
  2. Step 2: Convert to fraction form
    112,743.30/155,585.43 = 62,442.30/x
  3. Step 3: Cross multiply
    112,743.30x = 155,585.43 × 62,442.30
  4. Step 4: Simplify right side
    112,743.30x = 9,715,112,095.69
  5. Step 5: Solve for x
    x = 9,715,112,095.69/112,743.30
  6. Step 6: Final answer
    x = 86,170.19

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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.