Home / 158,934.51-219,333.68-87,316.34

Finding the Fourth Proportional to 158,934.51, 219,333.68 and 87,316.34

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Solution

The fourth proportional to 158,934.51, 219,333.68 and 87,316.34 is: 120,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,934.51 : 219,333.68 = 87,316.34 : x
  2. Step 2: Convert to fraction form
    158,934.51/219,333.68 = 87,316.34/x
  3. Step 3: Cross multiply
    158,934.51x = 219,333.68 × 87,316.34
  4. Step 4: Simplify right side
    158,934.51x = 19,151,413,297.95
  5. Step 5: Solve for x
    x = 19,151,413,297.95/158,934.51
  6. Step 6: Final answer
    x = 120,498.77

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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.