Home / 158,828.57-219,181.91-87,207.96

Finding the Fourth Proportional to 158,828.57, 219,181.91 and 87,207.96

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Solution

The fourth proportional to 158,828.57, 219,181.91 and 87,207.96 is: 120,346.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,828.57 : 219,181.91 = 87,207.96 : x
  2. Step 2: Convert to fraction form
    158,828.57/219,181.91 = 87,207.96/x
  3. Step 3: Cross multiply
    158,828.57x = 219,181.91 × 87,207.96
  4. Step 4: Simplify right side
    158,828.57x = 19,114,406,803.96
  5. Step 5: Solve for x
    x = 19,114,406,803.96/158,828.57
  6. Step 6: Final answer
    x = 120,346.15

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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.