Home / 163,579.20-225,763.20-91,965.12

Finding the Fourth Proportional to 163,579.20, 225,763.20 and 91,965.12

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Solution

The fourth proportional to 163,579.20, 225,763.20 and 91,965.12 is: 126,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,579.20 : 225,763.20 = 91,965.12 : x
  2. Step 2: Convert to fraction form
    163,579.20/225,763.20 = 91,965.12/x
  3. Step 3: Cross multiply
    163,579.20x = 225,763.20 × 91,965.12
  4. Step 4: Simplify right side
    163,579.20x = 20,762,339,779.58
  5. Step 5: Solve for x
    x = 20,762,339,779.58/163,579.20
  6. Step 6: Final answer
    x = 126,925.30

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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.