Home / 158,868.50-219,240.04-87,250

Finding the Fourth Proportional to 158,868.50, 219,240.04 and 87,250

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Solution

The fourth proportional to 158,868.50, 219,240.04 and 87,250 is: 120,405.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,868.50 : 219,240.04 = 87,250 : x
  2. Step 2: Convert to fraction form
    158,868.50/219,240.04 = 87,250/x
  3. Step 3: Cross multiply
    158,868.50x = 219,240.04 × 87,250
  4. Step 4: Simplify right side
    158,868.50x = 19,128,693,490
  5. Step 5: Solve for x
    x = 19,128,693,490/158,868.50
  6. Step 6: Final answer
    x = 120,405.83

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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.