Home / 158,725.45-219,047.45-87,108.04

Finding the Fourth Proportional to 158,725.45, 219,047.45 and 87,108.04

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Solution

The fourth proportional to 158,725.45, 219,047.45 and 87,108.04 is: 120,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,725.45 : 219,047.45 = 87,108.04 : x
  2. Step 2: Convert to fraction form
    158,725.45/219,047.45 = 87,108.04/x
  3. Step 3: Cross multiply
    158,725.45x = 219,047.45 × 87,108.04
  4. Step 4: Simplify right side
    158,725.45x = 19,080,794,036.50
  5. Step 5: Solve for x
    x = 19,080,794,036.50/158,725.45
  6. Step 6: Final answer
    x = 120,212.57

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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.