Home / 158,828.32-219,181.62-87,211.36

Finding the Fourth Proportional to 158,828.32, 219,181.62 and 87,211.36

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Solution

The fourth proportional to 158,828.32, 219,181.62 and 87,211.36 is: 120,350.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,828.32 : 219,181.62 = 87,211.36 : x
  2. Step 2: Convert to fraction form
    158,828.32/219,181.62 = 87,211.36/x
  3. Step 3: Cross multiply
    158,828.32x = 219,181.62 × 87,211.36
  4. Step 4: Simplify right side
    158,828.32x = 19,115,127,167.20
  5. Step 5: Solve for x
    x = 19,115,127,167.20/158,828.32
  6. Step 6: Final answer
    x = 120,350.87

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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.