Home / 160,868.92-221,981.34-89,231.08

Finding the Fourth Proportional to 160,868.92, 221,981.34 and 89,231.08

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Solution

The fourth proportional to 160,868.92, 221,981.34 and 89,231.08 is: 123,129.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,868.92 : 221,981.34 = 89,231.08 : x
  2. Step 2: Convert to fraction form
    160,868.92/221,981.34 = 89,231.08/x
  3. Step 3: Cross multiply
    160,868.92x = 221,981.34 × 89,231.08
  4. Step 4: Simplify right side
    160,868.92x = 19,807,634,708.05
  5. Step 5: Solve for x
    x = 19,807,634,708.05/160,868.92
  6. Step 6: Final answer
    x = 123,129.03

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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.