Home / 75,666.13-113,365.37-71,165.57

Finding the Fourth Proportional to 75,666.13, 113,365.37 and 71,165.57

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Solution

The fourth proportional to 75,666.13, 113,365.37 and 71,165.57 is: 106,622.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,666.13 : 113,365.37 = 71,165.57 : x
  2. Step 2: Convert to fraction form
    75,666.13/113,365.37 = 71,165.57/x
  3. Step 3: Cross multiply
    75,666.13x = 113,365.37 × 71,165.57
  4. Step 4: Simplify right side
    75,666.13x = 8,067,710,464.58
  5. Step 5: Solve for x
    x = 8,067,710,464.58/75,666.13
  6. Step 6: Final answer
    x = 106,622.48

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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.