Home / 125,855.10-188,782.65-121,016.70

Finding the Fourth Proportional to 125,855.10, 188,782.65 and 121,016.70

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Solution

The fourth proportional to 125,855.10, 188,782.65 and 121,016.70 is: 181,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,855.10 : 188,782.65 = 121,016.70 : x
  2. Step 2: Convert to fraction form
    125,855.10/188,782.65 = 121,016.70/x
  3. Step 3: Cross multiply
    125,855.10x = 188,782.65 × 121,016.70
  4. Step 4: Simplify right side
    125,855.10x = 22,845,853,320.26
  5. Step 5: Solve for x
    x = 22,845,853,320.26/125,855.10
  6. Step 6: Final answer
    x = 181,525.05

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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.