Home / 159,047.38-219,485.84-91,065.40

Finding the Fourth Proportional to 159,047.38, 219,485.84 and 91,065.40

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Solution

The fourth proportional to 159,047.38, 219,485.84 and 91,065.40 is: 125,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,047.38 : 219,485.84 = 91,065.40 : x
  2. Step 2: Convert to fraction form
    159,047.38/219,485.84 = 91,065.40/x
  3. Step 3: Cross multiply
    159,047.38x = 219,485.84 × 91,065.40
  4. Step 4: Simplify right side
    159,047.38x = 19,987,565,813.94
  5. Step 5: Solve for x
    x = 19,987,565,813.94/159,047.38
  6. Step 6: Final answer
    x = 125,670.51

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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.