Home / 158,932.63-219,331.09-87,314.46

Finding the Fourth Proportional to 158,932.63, 219,331.09 and 87,314.46

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Solution

The fourth proportional to 158,932.63, 219,331.09 and 87,314.46 is: 120,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,932.63 : 219,331.09 = 87,314.46 : x
  2. Step 2: Convert to fraction form
    158,932.63/219,331.09 = 87,314.46/x
  3. Step 3: Cross multiply
    158,932.63x = 219,331.09 × 87,314.46
  4. Step 4: Simplify right side
    158,932.63x = 19,150,774,971.21
  5. Step 5: Solve for x
    x = 19,150,774,971.21/158,932.63
  6. Step 6: Final answer
    x = 120,496.18

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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.