Home / 159,145.51-219,566.99-90,227.57

Finding the Fourth Proportional to 159,145.51, 219,566.99 and 90,227.57

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Solution

The fourth proportional to 159,145.51, 219,566.99 and 90,227.57 is: 124,483.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,145.51 : 219,566.99 = 90,227.57 : x
  2. Step 2: Convert to fraction form
    159,145.51/219,566.99 = 90,227.57/x
  3. Step 3: Cross multiply
    159,145.51x = 219,566.99 × 90,227.57
  4. Step 4: Simplify right side
    159,145.51x = 19,810,995,815.18
  5. Step 5: Solve for x
    x = 19,810,995,815.18/159,145.51
  6. Step 6: Final answer
    x = 124,483.54

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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.