Home / 112,836.38-155,717.01-61,851.33

Finding the Fourth Proportional to 112,836.38, 155,717.01 and 61,851.33

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Solution

The fourth proportional to 112,836.38, 155,717.01 and 61,851.33 is: 85,356.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,836.38 : 155,717.01 = 61,851.33 : x
  2. Step 2: Convert to fraction form
    112,836.38/155,717.01 = 61,851.33/x
  3. Step 3: Cross multiply
    112,836.38x = 155,717.01 × 61,851.33
  4. Step 4: Simplify right side
    112,836.38x = 9,631,304,172.12
  5. Step 5: Solve for x
    x = 9,631,304,172.12/112,836.38
  6. Step 6: Final answer
    x = 85,356.38

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1.5x scale

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.