Home / 142,151.43-213,226.08-57,891.78

Finding the Fourth Proportional to 142,151.43, 213,226.08 and 57,891.78

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Solution

The fourth proportional to 142,151.43, 213,226.08 and 57,891.78 is: 86,837.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,151.43 : 213,226.08 = 57,891.78 : x
  2. Step 2: Convert to fraction form
    142,151.43/213,226.08 = 57,891.78/x
  3. Step 3: Cross multiply
    142,151.43x = 213,226.08 × 57,891.78
  4. Step 4: Simplify right side
    142,151.43x = 12,344,037,313.62
  5. Step 5: Solve for x
    x = 12,344,037,313.62/142,151.43
  6. Step 6: Final answer
    x = 86,837.24

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1.5x scale

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.