Home / 221,772.08-306,012-124,971.84

Finding the Fourth Proportional to 221,772.08, 306,012 and 124,971.84

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Solution

The fourth proportional to 221,772.08, 306,012 and 124,971.84 is: 172,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,772.08 : 306,012 = 124,971.84 : x
  2. Step 2: Convert to fraction form
    221,772.08/306,012 = 124,971.84/x
  3. Step 3: Cross multiply
    221,772.08x = 306,012 × 124,971.84
  4. Step 4: Simplify right side
    221,772.08x = 38,242,882,702.08
  5. Step 5: Solve for x
    x = 38,242,882,702.08/221,772.08
  6. Step 6: Final answer
    x = 172,442.28

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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.