Home / 158,817.68-219,168.82-87,202.34

Finding the Fourth Proportional to 158,817.68, 219,168.82 and 87,202.34

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Solution

The fourth proportional to 158,817.68, 219,168.82 and 87,202.34 is: 120,339.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,817.68 : 219,168.82 = 87,202.34 : x
  2. Step 2: Convert to fraction form
    158,817.68/219,168.82 = 87,202.34/x
  3. Step 3: Cross multiply
    158,817.68x = 219,168.82 × 87,202.34
  4. Step 4: Simplify right side
    158,817.68x = 19,112,033,959.04
  5. Step 5: Solve for x
    x = 19,112,033,959.04/158,817.68
  6. Step 6: Final answer
    x = 120,339.46

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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.