Home / 125,636.28-188,451.45-30,866.31

Finding the Fourth Proportional to 125,636.28, 188,451.45 and 30,866.31

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Solution

The fourth proportional to 125,636.28, 188,451.45 and 30,866.31 is: 46,298.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,636.28 : 188,451.45 = 30,866.31 : x
  2. Step 2: Convert to fraction form
    125,636.28/188,451.45 = 30,866.31/x
  3. Step 3: Cross multiply
    125,636.28x = 188,451.45 × 30,866.31
  4. Step 4: Simplify right side
    125,636.28x = 5,816,800,875.65
  5. Step 5: Solve for x
    x = 5,816,800,875.65/125,636.28
  6. Step 6: Final answer
    x = 46,298.74

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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.