Home / 125,007.48-172,514.45-68,418.86

Finding the Fourth Proportional to 125,007.48, 172,514.45 and 68,418.86

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Solution

The fourth proportional to 125,007.48, 172,514.45 and 68,418.86 is: 94,420.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,007.48 : 172,514.45 = 68,418.86 : x
  2. Step 2: Convert to fraction form
    125,007.48/172,514.45 = 68,418.86/x
  3. Step 3: Cross multiply
    125,007.48x = 172,514.45 × 68,418.86
  4. Step 4: Simplify right side
    125,007.48x = 11,803,240,797.86
  5. Step 5: Solve for x
    x = 11,803,240,797.86/125,007.48
  6. Step 6: Final answer
    x = 94,420.28

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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.