Home / 142,057.19-213,062.49-57,813.95

Finding the Fourth Proportional to 142,057.19, 213,062.49 and 57,813.95

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Solution

The fourth proportional to 142,057.19, 213,062.49 and 57,813.95 is: 86,711.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,057.19 : 213,062.49 = 57,813.95 : x
  2. Step 2: Convert to fraction form
    142,057.19/213,062.49 = 57,813.95/x
  3. Step 3: Cross multiply
    142,057.19x = 213,062.49 × 57,813.95
  4. Step 4: Simplify right side
    142,057.19x = 12,317,983,078.42
  5. Step 5: Solve for x
    x = 12,317,983,078.42/142,057.19
  6. Step 6: Final answer
    x = 86,711.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.