Home / 112,827.05-155,703.04-61,839.38

Finding the Fourth Proportional to 112,827.05, 155,703.04 and 61,839.38

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Solution

The fourth proportional to 112,827.05, 155,703.04 and 61,839.38 is: 85,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,827.05 : 155,703.04 = 61,839.38 : x
  2. Step 2: Convert to fraction form
    112,827.05/155,703.04 = 61,839.38/x
  3. Step 3: Cross multiply
    112,827.05x = 155,703.04 × 61,839.38
  4. Step 4: Simplify right side
    112,827.05x = 9,628,578,370.00
  5. Step 5: Solve for x
    x = 9,628,578,370.00/112,827.05
  6. Step 6: Final answer
    x = 85,339.27

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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.