Home / 158,792.28-219,120.84-87,172.08

Finding the Fourth Proportional to 158,792.28, 219,120.84 and 87,172.08

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Solution

The fourth proportional to 158,792.28, 219,120.84 and 87,172.08 is: 120,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,792.28 : 219,120.84 = 87,172.08 : x
  2. Step 2: Convert to fraction form
    158,792.28/219,120.84 = 87,172.08/x
  3. Step 3: Cross multiply
    158,792.28x = 219,120.84 × 87,172.08
  4. Step 4: Simplify right side
    158,792.28x = 19,101,219,394.15
  5. Step 5: Solve for x
    x = 19,101,219,394.15/158,792.28
  6. Step 6: Final answer
    x = 120,290.60

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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.