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Finding the Fourth Proportional to 158,969.66, 219,383.52 and 87,352.25

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Solution

The fourth proportional to 158,969.66, 219,383.52 and 87,352.25 is: 120,549.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,969.66 : 219,383.52 = 87,352.25 : x
  2. Step 2: Convert to fraction form
    158,969.66/219,383.52 = 87,352.25/x
  3. Step 3: Cross multiply
    158,969.66x = 219,383.52 × 87,352.25
  4. Step 4: Simplify right side
    158,969.66x = 19,163,644,084.92
  5. Step 5: Solve for x
    x = 19,163,644,084.92/158,969.66
  6. Step 6: Final answer
    x = 120,549.07

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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.