Home / 160,105.25-221,047.13-99,764.55

Finding the Fourth Proportional to 160,105.25, 221,047.13 and 99,764.55

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Solution

The fourth proportional to 160,105.25, 221,047.13 and 99,764.55 is: 137,738.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,105.25 : 221,047.13 = 99,764.55 : x
  2. Step 2: Convert to fraction form
    160,105.25/221,047.13 = 99,764.55/x
  3. Step 3: Cross multiply
    160,105.25x = 221,047.13 × 99,764.55
  4. Step 4: Simplify right side
    160,105.25x = 22,052,666,954.42
  5. Step 5: Solve for x
    x = 22,052,666,954.42/160,105.25
  6. Step 6: Final answer
    x = 137,738.57

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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.