Home / 159,568.40-220,205.16-87,945.20

Finding the Fourth Proportional to 159,568.40, 220,205.16 and 87,945.20

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Solution

The fourth proportional to 159,568.40, 220,205.16 and 87,945.20 is: 121,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,568.40 : 220,205.16 = 87,945.20 : x
  2. Step 2: Convert to fraction form
    159,568.40/220,205.16 = 87,945.20/x
  3. Step 3: Cross multiply
    159,568.40x = 220,205.16 × 87,945.20
  4. Step 4: Simplify right side
    159,568.40x = 19,365,986,837.23
  5. Step 5: Solve for x
    x = 19,365,986,837.23/159,568.40
  6. Step 6: Final answer
    x = 121,364.80

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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.