Home / 158,722.47-219,029.81-87,101.06

Finding the Fourth Proportional to 158,722.47, 219,029.81 and 87,101.06

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Solution

The fourth proportional to 158,722.47, 219,029.81 and 87,101.06 is: 120,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,722.47 : 219,029.81 = 87,101.06 : x
  2. Step 2: Convert to fraction form
    158,722.47/219,029.81 = 87,101.06/x
  3. Step 3: Cross multiply
    158,722.47x = 219,029.81 × 87,101.06
  4. Step 4: Simplify right side
    158,722.47x = 19,077,727,091.94
  5. Step 5: Solve for x
    x = 19,077,727,091.94/158,722.47
  6. Step 6: Final answer
    x = 120,195.50

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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.