Home / 159,010.21-219,436.64-91,026.91

Finding the Fourth Proportional to 159,010.21, 219,436.64 and 91,026.91

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Solution

The fourth proportional to 159,010.21, 219,436.64 and 91,026.91 is: 125,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,010.21 : 219,436.64 = 91,026.91 : x
  2. Step 2: Convert to fraction form
    159,010.21/219,436.64 = 91,026.91/x
  3. Step 3: Cross multiply
    159,010.21x = 219,436.64 × 91,026.91
  4. Step 4: Simplify right side
    159,010.21x = 19,974,638,410.37
  5. Step 5: Solve for x
    x = 19,974,638,410.37/159,010.21
  6. Step 6: Final answer
    x = 125,618.59

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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.