Home / 147,775.28-221,561.64-53,003.42

Finding the Fourth Proportional to 147,775.28, 221,561.64 and 53,003.42

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Solution

The fourth proportional to 147,775.28, 221,561.64 and 53,003.42 is: 79,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,775.28 : 221,561.64 = 53,003.42 : x
  2. Step 2: Convert to fraction form
    147,775.28/221,561.64 = 53,003.42/x
  3. Step 3: Cross multiply
    147,775.28x = 221,561.64 × 53,003.42
  4. Step 4: Simplify right side
    147,775.28x = 11,743,524,660.81
  5. Step 5: Solve for x
    x = 11,743,524,660.81/147,775.28
  6. Step 6: Final answer
    x = 79,468.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.