Home / 125,927.40-188,891.10-112,149.30

Finding the Fourth Proportional to 125,927.40, 188,891.10 and 112,149.30

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Solution

The fourth proportional to 125,927.40, 188,891.10 and 112,149.30 is: 168,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,927.40 : 188,891.10 = 112,149.30 : x
  2. Step 2: Convert to fraction form
    125,927.40/188,891.10 = 112,149.30/x
  3. Step 3: Cross multiply
    125,927.40x = 188,891.10 × 112,149.30
  4. Step 4: Simplify right side
    125,927.40x = 21,184,004,641.23
  5. Step 5: Solve for x
    x = 21,184,004,641.23/125,927.40
  6. Step 6: Final answer
    x = 168,223.95

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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.