Home / 159,185.79-219,707.64-91,248.30

Finding the Fourth Proportional to 159,185.79, 219,707.64 and 91,248.30

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Solution

The fourth proportional to 159,185.79, 219,707.64 and 91,248.30 is: 125,940.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,185.79 : 219,707.64 = 91,248.30 : x
  2. Step 2: Convert to fraction form
    159,185.79/219,707.64 = 91,248.30/x
  3. Step 3: Cross multiply
    159,185.79x = 219,707.64 × 91,248.30
  4. Step 4: Simplify right side
    159,185.79x = 20,047,948,647.01
  5. Step 5: Solve for x
    x = 20,047,948,647.01/159,185.79
  6. Step 6: Final answer
    x = 125,940.57

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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.