Home / 158,959.18-219,272.43-99,239.50

Finding the Fourth Proportional to 158,959.18, 219,272.43 and 99,239.50

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Solution

The fourth proportional to 158,959.18, 219,272.43 and 99,239.50 is: 136,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,959.18 : 219,272.43 = 99,239.50 : x
  2. Step 2: Convert to fraction form
    158,959.18/219,272.43 = 99,239.50/x
  3. Step 3: Cross multiply
    158,959.18x = 219,272.43 × 99,239.50
  4. Step 4: Simplify right side
    158,959.18x = 21,760,486,316.99
  5. Step 5: Solve for x
    x = 21,760,486,316.99/158,959.18
  6. Step 6: Final answer
    x = 136,893.55

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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.