Home / 112,371.30-155,072.92-61,384.73

Finding the Fourth Proportional to 112,371.30, 155,072.92 and 61,384.73

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Solution

The fourth proportional to 112,371.30, 155,072.92 and 61,384.73 is: 84,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,371.30 : 155,072.92 = 61,384.73 : x
  2. Step 2: Convert to fraction form
    112,371.30/155,072.92 = 61,384.73/x
  3. Step 3: Cross multiply
    112,371.30x = 155,072.92 × 61,384.73
  4. Step 4: Simplify right side
    112,371.30x = 9,519,109,324.51
  5. Step 5: Solve for x
    x = 9,519,109,324.51/112,371.30
  6. Step 6: Final answer
    x = 84,711.21

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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.