Home / 161,878.20-223,394.40-90,255.84

Finding the Fourth Proportional to 161,878.20, 223,394.40 and 90,255.84

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Solution

The fourth proportional to 161,878.20, 223,394.40 and 90,255.84 is: 124,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,878.20 : 223,394.40 = 90,255.84 : x
  2. Step 2: Convert to fraction form
    161,878.20/223,394.40 = 90,255.84/x
  3. Step 3: Cross multiply
    161,878.20x = 223,394.40 × 90,255.84
  4. Step 4: Simplify right side
    161,878.20x = 20,162,649,223.30
  5. Step 5: Solve for x
    x = 20,162,649,223.30/161,878.20
  6. Step 6: Final answer
    x = 124,554.44

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1.5x scale

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.