Home / 158,982.48-219,400.92-87,369.12

Finding the Fourth Proportional to 158,982.48, 219,400.92 and 87,369.12

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Solution

The fourth proportional to 158,982.48, 219,400.92 and 87,369.12 is: 120,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,982.48 : 219,400.92 = 87,369.12 : x
  2. Step 2: Convert to fraction form
    158,982.48/219,400.92 = 87,369.12/x
  3. Step 3: Cross multiply
    158,982.48x = 219,400.92 × 87,369.12
  4. Step 4: Simplify right side
    158,982.48x = 19,168,865,307.59
  5. Step 5: Solve for x
    x = 19,168,865,307.59/158,982.48
  6. Step 6: Final answer
    x = 120,572.19

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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.