Home / 158,723.88-219,038.29-87,105.07

Finding the Fourth Proportional to 158,723.88, 219,038.29 and 87,105.07

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Solution

The fourth proportional to 158,723.88, 219,038.29 and 87,105.07 is: 120,204.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,723.88 : 219,038.29 = 87,105.07 : x
  2. Step 2: Convert to fraction form
    158,723.88/219,038.29 = 87,105.07/x
  3. Step 3: Cross multiply
    158,723.88x = 219,038.29 × 87,105.07
  4. Step 4: Simplify right side
    158,723.88x = 19,079,345,583.13
  5. Step 5: Solve for x
    x = 19,079,345,583.13/158,723.88
  6. Step 6: Final answer
    x = 120,204.63

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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.