Home / 159,461.08-220,049.22-91,429.36

Finding the Fourth Proportional to 159,461.08, 220,049.22 and 91,429.36

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Solution

The fourth proportional to 159,461.08, 220,049.22 and 91,429.36 is: 126,168.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,461.08 : 220,049.22 = 91,429.36 : x
  2. Step 2: Convert to fraction form
    159,461.08/220,049.22 = 91,429.36/x
  3. Step 3: Cross multiply
    159,461.08x = 220,049.22 × 91,429.36
  4. Step 4: Simplify right side
    159,461.08x = 20,118,959,353.10
  5. Step 5: Solve for x
    x = 20,118,959,353.10/159,461.08
  6. Step 6: Final answer
    x = 126,168.46

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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.