Home / 159,211.67-219,687.07-91,215.55

Finding the Fourth Proportional to 159,211.67, 219,687.07 and 91,215.55

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Solution

The fourth proportional to 159,211.67, 219,687.07 and 91,215.55 is: 125,863.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,211.67 : 219,687.07 = 91,215.55 : x
  2. Step 2: Convert to fraction form
    159,211.67/219,687.07 = 91,215.55/x
  3. Step 3: Cross multiply
    159,211.67x = 219,687.07 × 91,215.55
  4. Step 4: Simplify right side
    159,211.67x = 20,038,875,363.43
  5. Step 5: Solve for x
    x = 20,038,875,363.43/159,211.67
  6. Step 6: Final answer
    x = 125,863.11

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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.