Home / 159,119.86-219,585.09-91,158.83

Finding the Fourth Proportional to 159,119.86, 219,585.09 and 91,158.83

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Solution

The fourth proportional to 159,119.86, 219,585.09 and 91,158.83 is: 125,799.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,119.86 : 219,585.09 = 91,158.83 : x
  2. Step 2: Convert to fraction form
    159,119.86/219,585.09 = 91,158.83/x
  3. Step 3: Cross multiply
    159,119.86x = 219,585.09 × 91,158.83
  4. Step 4: Simplify right side
    159,119.86x = 20,017,120,438.81
  5. Step 5: Solve for x
    x = 20,017,120,438.81/159,119.86
  6. Step 6: Final answer
    x = 125,799.01

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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.