Home / 159,013.47-219,433.95-91,028.19

Finding the Fourth Proportional to 159,013.47, 219,433.95 and 91,028.19

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Solution

The fourth proportional to 159,013.47, 219,433.95 and 91,028.19 is: 125,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,013.47 : 219,433.95 = 91,028.19 : x
  2. Step 2: Convert to fraction form
    159,013.47/219,433.95 = 91,028.19/x
  3. Step 3: Cross multiply
    159,013.47x = 219,433.95 × 91,028.19
  4. Step 4: Simplify right side
    159,013.47x = 19,974,675,293.05
  5. Step 5: Solve for x
    x = 19,974,675,293.05/159,013.47
  6. Step 6: Final answer
    x = 125,616.25

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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.