Home / 124,771.74-172,133.55-87,067.86

Finding the Fourth Proportional to 124,771.74, 172,133.55 and 87,067.86

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Solution

The fourth proportional to 124,771.74, 172,133.55 and 87,067.86 is: 120,117.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,771.74 : 172,133.55 = 87,067.86 : x
  2. Step 2: Convert to fraction form
    124,771.74/172,133.55 = 87,067.86/x
  3. Step 3: Cross multiply
    124,771.74x = 172,133.55 × 87,067.86
  4. Step 4: Simplify right side
    124,771.74x = 14,987,299,832.70
  5. Step 5: Solve for x
    x = 14,987,299,832.70/124,771.74
  6. Step 6: Final answer
    x = 120,117.74

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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.