Home / 125,508.48-188,284.16-42,382.72

Finding the Fourth Proportional to 125,508.48, 188,284.16 and 42,382.72

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Solution

The fourth proportional to 125,508.48, 188,284.16 and 42,382.72 is: 63,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,508.48 : 188,284.16 = 42,382.72 : x
  2. Step 2: Convert to fraction form
    125,508.48/188,284.16 = 42,382.72/x
  3. Step 3: Cross multiply
    125,508.48x = 188,284.16 × 42,382.72
  4. Step 4: Simplify right side
    125,508.48x = 7,979,994,833.72
  5. Step 5: Solve for x
    x = 7,979,994,833.72/125,508.48
  6. Step 6: Final answer
    x = 63,581.32

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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.