Home / 159,526.78-220,157.62-87,906.80

Finding the Fourth Proportional to 159,526.78, 220,157.62 and 87,906.80

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Solution

The fourth proportional to 159,526.78, 220,157.62 and 87,906.80 is: 121,317.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,526.78 : 220,157.62 = 87,906.80 : x
  2. Step 2: Convert to fraction form
    159,526.78/220,157.62 = 87,906.80/x
  3. Step 3: Cross multiply
    159,526.78x = 220,157.62 × 87,906.80
  4. Step 4: Simplify right side
    159,526.78x = 19,353,351,869.82
  5. Step 5: Solve for x
    x = 19,353,351,869.82/159,526.78
  6. Step 6: Final answer
    x = 121,317.26

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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.