Home / 158,922.72-219,315.60-87,309.36

Finding the Fourth Proportional to 158,922.72, 219,315.60 and 87,309.36

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Solution

The fourth proportional to 158,922.72, 219,315.60 and 87,309.36 is: 120,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,922.72 : 219,315.60 = 87,309.36 : x
  2. Step 2: Convert to fraction form
    158,922.72/219,315.60 = 87,309.36/x
  3. Step 3: Cross multiply
    158,922.72x = 219,315.60 × 87,309.36
  4. Step 4: Simplify right side
    158,922.72x = 19,148,304,674.02
  5. Step 5: Solve for x
    x = 19,148,304,674.02/158,922.72
  6. Step 6: Final answer
    x = 120,488.15

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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.