Home / 147,584.90-221,377.35-121,319.30

Finding the Fourth Proportional to 147,584.90, 221,377.35 and 121,319.30

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Solution

The fourth proportional to 147,584.90, 221,377.35 and 121,319.30 is: 181,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,584.90 : 221,377.35 = 121,319.30 : x
  2. Step 2: Convert to fraction form
    147,584.90/221,377.35 = 121,319.30/x
  3. Step 3: Cross multiply
    147,584.90x = 221,377.35 × 121,319.30
  4. Step 4: Simplify right side
    147,584.90x = 26,857,345,137.86
  5. Step 5: Solve for x
    x = 26,857,345,137.86/147,584.90
  6. Step 6: Final answer
    x = 181,978.95

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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.