Home / 159,790.45-220,501.50-88,170.30

Finding the Fourth Proportional to 159,790.45, 220,501.50 and 88,170.30

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Solution

The fourth proportional to 159,790.45, 220,501.50 and 88,170.30 is: 121,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,790.45 : 220,501.50 = 88,170.30 : x
  2. Step 2: Convert to fraction form
    159,790.45/220,501.50 = 88,170.30/x
  3. Step 3: Cross multiply
    159,790.45x = 220,501.50 × 88,170.30
  4. Step 4: Simplify right side
    159,790.45x = 19,441,683,074.60
  5. Step 5: Solve for x
    x = 19,441,683,074.60/159,790.45
  6. Step 6: Final answer
    x = 121,669.87

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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.