Home / 159,170.19-219,650.54-90,272.30

Finding the Fourth Proportional to 159,170.19, 219,650.54 and 90,272.30

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Solution

The fourth proportional to 159,170.19, 219,650.54 and 90,272.30 is: 124,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,170.19 : 219,650.54 = 90,272.30 : x
  2. Step 2: Convert to fraction form
    159,170.19/219,650.54 = 90,272.30/x
  3. Step 3: Cross multiply
    159,170.19x = 219,650.54 × 90,272.30
  4. Step 4: Simplify right side
    159,170.19x = 19,828,358,569.47
  5. Step 5: Solve for x
    x = 19,828,358,569.47/159,170.19
  6. Step 6: Final answer
    x = 124,573.32

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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.