Home / 221,118.64-305,151.96-125,641.52

Finding the Fourth Proportional to 221,118.64, 305,151.96 and 125,641.52

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Solution

The fourth proportional to 221,118.64, 305,151.96 and 125,641.52 is: 173,389.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,118.64 : 305,151.96 = 125,641.52 : x
  2. Step 2: Convert to fraction form
    221,118.64/305,151.96 = 125,641.52/x
  3. Step 3: Cross multiply
    221,118.64x = 305,151.96 × 125,641.52
  4. Step 4: Simplify right side
    221,118.64x = 38,339,756,085.38
  5. Step 5: Solve for x
    x = 38,339,756,085.38/221,118.64
  6. Step 6: Final answer
    x = 173,389.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.