Home / 102,859.12-141,958.71-57,539.62

Finding the Fourth Proportional to 102,859.12, 141,958.71 and 57,539.62

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Solution

The fourth proportional to 102,859.12, 141,958.71 and 57,539.62 is: 79,412.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,859.12 : 141,958.71 = 57,539.62 : x
  2. Step 2: Convert to fraction form
    102,859.12/141,958.71 = 57,539.62/x
  3. Step 3: Cross multiply
    102,859.12x = 141,958.71 × 57,539.62
  4. Step 4: Simplify right side
    102,859.12x = 8,168,250,229.09
  5. Step 5: Solve for x
    x = 8,168,250,229.09/102,859.12
  6. Step 6: Final answer
    x = 79,412.02

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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.