Home / 159,821.08-220,558.24-90,908.76

Finding the Fourth Proportional to 159,821.08, 220,558.24 and 90,908.76

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Solution

The fourth proportional to 159,821.08, 220,558.24 and 90,908.76 is: 125,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,821.08 : 220,558.24 = 90,908.76 : x
  2. Step 2: Convert to fraction form
    159,821.08/220,558.24 = 90,908.76/x
  3. Step 3: Cross multiply
    159,821.08x = 220,558.24 × 90,908.76
  4. Step 4: Simplify right side
    159,821.08x = 20,050,675,651.64
  5. Step 5: Solve for x
    x = 20,050,675,651.64/159,821.08
  6. Step 6: Final answer
    x = 125,457.02

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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.