Home / 159,579.06-220,209.09-87,955.14

Finding the Fourth Proportional to 159,579.06, 220,209.09 and 87,955.14

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Solution

The fourth proportional to 159,579.06, 220,209.09 and 87,955.14 is: 121,372.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,579.06 : 220,209.09 = 87,955.14 : x
  2. Step 2: Convert to fraction form
    159,579.06/220,209.09 = 87,955.14/x
  3. Step 3: Cross multiply
    159,579.06x = 220,209.09 × 87,955.14
  4. Step 4: Simplify right side
    159,579.06x = 19,368,521,340.22
  5. Step 5: Solve for x
    x = 19,368,521,340.22/159,579.06
  6. Step 6: Final answer
    x = 121,372.57

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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.