Home / 158,727.02-219,044.94-87,111.68

Finding the Fourth Proportional to 158,727.02, 219,044.94 and 87,111.68

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Solution

The fourth proportional to 158,727.02, 219,044.94 and 87,111.68 is: 120,215.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,727.02 : 219,044.94 = 87,111.68 : x
  2. Step 2: Convert to fraction form
    158,727.02/219,044.94 = 87,111.68/x
  3. Step 3: Cross multiply
    158,727.02x = 219,044.94 × 87,111.68
  4. Step 4: Simplify right side
    158,727.02x = 19,081,372,718.90
  5. Step 5: Solve for x
    x = 19,081,372,718.90/158,727.02
  6. Step 6: Final answer
    x = 120,215.03

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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.