Home / 124,148.22-171,164.43-90,205.98

Finding the Fourth Proportional to 124,148.22, 171,164.43 and 90,205.98

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Solution

The fourth proportional to 124,148.22, 171,164.43 and 90,205.98 is: 124,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,148.22 : 171,164.43 = 90,205.98 : x
  2. Step 2: Convert to fraction form
    124,148.22/171,164.43 = 90,205.98/x
  3. Step 3: Cross multiply
    124,148.22x = 171,164.43 × 90,205.98
  4. Step 4: Simplify right side
    124,148.22x = 15,440,055,149.29
  5. Step 5: Solve for x
    x = 15,440,055,149.29/124,148.22
  6. Step 6: Final answer
    x = 124,367.91

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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.