Home / 112,809.12-155,676.72-62,508

Finding the Fourth Proportional to 112,809.12, 155,676.72 and 62,508

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Solution

The fourth proportional to 112,809.12, 155,676.72 and 62,508 is: 86,261.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,809.12 : 155,676.72 = 62,508 : x
  2. Step 2: Convert to fraction form
    112,809.12/155,676.72 = 62,508/x
  3. Step 3: Cross multiply
    112,809.12x = 155,676.72 × 62,508
  4. Step 4: Simplify right side
    112,809.12x = 9,731,040,413.76
  5. Step 5: Solve for x
    x = 9,731,040,413.76/112,809.12
  6. Step 6: Final answer
    x = 86,261.11

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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.