Home / 158,960.10-219,364.26-87,339.90

Finding the Fourth Proportional to 158,960.10, 219,364.26 and 87,339.90

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Solution

The fourth proportional to 158,960.10, 219,364.26 and 87,339.90 is: 120,528.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,960.10 : 219,364.26 = 87,339.90 : x
  2. Step 2: Convert to fraction form
    158,960.10/219,364.26 = 87,339.90/x
  3. Step 3: Cross multiply
    158,960.10x = 219,364.26 × 87,339.90
  4. Step 4: Simplify right side
    158,960.10x = 19,159,252,531.97
  5. Step 5: Solve for x
    x = 19,159,252,531.97/158,960.10
  6. Step 6: Final answer
    x = 120,528.69

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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.