Home / 112,699.82-155,518.88-61,713.18

Finding the Fourth Proportional to 112,699.82, 155,518.88 and 61,713.18

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Solution

The fourth proportional to 112,699.82, 155,518.88 and 61,713.18 is: 85,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,699.82 : 155,518.88 = 61,713.18 : x
  2. Step 2: Convert to fraction form
    112,699.82/155,518.88 = 61,713.18/x
  3. Step 3: Cross multiply
    112,699.82x = 155,518.88 × 61,713.18
  4. Step 4: Simplify right side
    112,699.82x = 9,597,564,634.84
  5. Step 5: Solve for x
    x = 9,597,564,634.84/112,699.82
  6. Step 6: Final answer
    x = 85,160.43

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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.