Home / 124,149.72-171,166.50-90,207.48

Finding the Fourth Proportional to 124,149.72, 171,166.50 and 90,207.48

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Solution

The fourth proportional to 124,149.72, 171,166.50 and 90,207.48 is: 124,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,149.72 : 171,166.50 = 90,207.48 : x
  2. Step 2: Convert to fraction form
    124,149.72/171,166.50 = 90,207.48/x
  3. Step 3: Cross multiply
    124,149.72x = 171,166.50 × 90,207.48
  4. Step 4: Simplify right side
    124,149.72x = 15,440,498,625.42
  5. Step 5: Solve for x
    x = 15,440,498,625.42/124,149.72
  6. Step 6: Final answer
    x = 124,369.98

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1.5x scale

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.