Home / 112,443.93-155,172.25-61,456.65

Finding the Fourth Proportional to 112,443.93, 155,172.25 and 61,456.65

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Solution

The fourth proportional to 112,443.93, 155,172.25 and 61,456.65 is: 84,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,443.93 : 155,172.25 = 61,456.65 : x
  2. Step 2: Convert to fraction form
    112,443.93/155,172.25 = 61,456.65/x
  3. Step 3: Cross multiply
    112,443.93x = 155,172.25 × 61,456.65
  4. Step 4: Simplify right side
    112,443.93x = 9,536,366,657.96
  5. Step 5: Solve for x
    x = 9,536,366,657.96/112,443.93
  6. Step 6: Final answer
    x = 84,809.97

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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.