Home / 148,718.72-205,229.28-81,650.24

Finding the Fourth Proportional to 148,718.72, 205,229.28 and 81,650.24

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Solution

The fourth proportional to 148,718.72, 205,229.28 and 81,650.24 is: 112,675.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,718.72 : 205,229.28 = 81,650.24 : x
  2. Step 2: Convert to fraction form
    148,718.72/205,229.28 = 81,650.24/x
  3. Step 3: Cross multiply
    148,718.72x = 205,229.28 × 81,650.24
  4. Step 4: Simplify right side
    148,718.72x = 16,757,019,967.03
  5. Step 5: Solve for x
    x = 16,757,019,967.03/148,718.72
  6. Step 6: Final answer
    x = 112,675.93

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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.