Home / 125,115.77-187,673.96-30,345.57

Finding the Fourth Proportional to 125,115.77, 187,673.96 and 30,345.57

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Solution

The fourth proportional to 125,115.77, 187,673.96 and 30,345.57 is: 45,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,115.77 : 187,673.96 = 30,345.57 : x
  2. Step 2: Convert to fraction form
    125,115.77/187,673.96 = 30,345.57/x
  3. Step 3: Cross multiply
    125,115.77x = 187,673.96 × 30,345.57
  4. Step 4: Simplify right side
    125,115.77x = 5,695,073,290.36
  5. Step 5: Solve for x
    x = 5,695,073,290.36/125,115.77
  6. Step 6: Final answer
    x = 45,518.43

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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.