Home / 147,627.70-221,441.55-85,225.30

Finding the Fourth Proportional to 147,627.70, 221,441.55 and 85,225.30

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Solution

The fourth proportional to 147,627.70, 221,441.55 and 85,225.30 is: 127,837.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,627.70 : 221,441.55 = 85,225.30 : x
  2. Step 2: Convert to fraction form
    147,627.70/221,441.55 = 85,225.30/x
  3. Step 3: Cross multiply
    147,627.70x = 221,441.55 × 85,225.30
  4. Step 4: Simplify right side
    147,627.70x = 18,872,422,531.22
  5. Step 5: Solve for x
    x = 18,872,422,531.22/147,627.70
  6. Step 6: Final answer
    x = 127,837.95

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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.