Home / 158,816.36-219,167.01-87,201.02

Finding the Fourth Proportional to 158,816.36, 219,167.01 and 87,201.02

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Solution

The fourth proportional to 158,816.36, 219,167.01 and 87,201.02 is: 120,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,816.36 : 219,167.01 = 87,201.02 : x
  2. Step 2: Convert to fraction form
    158,816.36/219,167.01 = 87,201.02/x
  3. Step 3: Cross multiply
    158,816.36x = 219,167.01 × 87,201.02
  4. Step 4: Simplify right side
    158,816.36x = 19,111,585,726.52
  5. Step 5: Solve for x
    x = 19,111,585,726.52/158,816.36
  6. Step 6: Final answer
    x = 120,337.64

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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.