Home / 159,008.48-219,436.80-87,395.12

Finding the Fourth Proportional to 159,008.48, 219,436.80 and 87,395.12

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Solution

The fourth proportional to 159,008.48, 219,436.80 and 87,395.12 is: 120,608.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,008.48 : 219,436.80 = 87,395.12 : x
  2. Step 2: Convert to fraction form
    159,008.48/219,436.80 = 87,395.12/x
  3. Step 3: Cross multiply
    159,008.48x = 219,436.80 × 87,395.12
  4. Step 4: Simplify right side
    159,008.48x = 19,177,705,468.42
  5. Step 5: Solve for x
    x = 19,177,705,468.42/159,008.48
  6. Step 6: Final answer
    x = 120,608.07

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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.