Home / 158,447.07-218,662.28-86,826.47

Finding the Fourth Proportional to 158,447.07, 218,662.28 and 86,826.47

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Solution

The fourth proportional to 158,447.07, 218,662.28 and 86,826.47 is: 119,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,447.07 : 218,662.28 = 86,826.47 : x
  2. Step 2: Convert to fraction form
    158,447.07/218,662.28 = 86,826.47/x
  3. Step 3: Cross multiply
    158,447.07x = 218,662.28 × 86,826.47
  4. Step 4: Simplify right side
    158,447.07x = 18,985,673,018.31
  5. Step 5: Solve for x
    x = 18,985,673,018.31/158,447.07
  6. Step 6: Final answer
    x = 119,823.44

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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.