Home / 158,716.26-219,019.71-87,090.63

Finding the Fourth Proportional to 158,716.26, 219,019.71 and 87,090.63

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Solution

The fourth proportional to 158,716.26, 219,019.71 and 87,090.63 is: 120,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,716.26 : 219,019.71 = 87,090.63 : x
  2. Step 2: Convert to fraction form
    158,716.26/219,019.71 = 87,090.63/x
  3. Step 3: Cross multiply
    158,716.26x = 219,019.71 × 87,090.63
  4. Step 4: Simplify right side
    158,716.26x = 19,074,564,031.58
  5. Step 5: Solve for x
    x = 19,074,564,031.58/158,716.26
  6. Step 6: Final answer
    x = 120,180.28

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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.