Home / 124,780.86-172,197.72-68,192.28

Finding the Fourth Proportional to 124,780.86, 172,197.72 and 68,192.28

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Solution

The fourth proportional to 124,780.86, 172,197.72 and 68,192.28 is: 94,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,780.86 : 172,197.72 = 68,192.28 : x
  2. Step 2: Convert to fraction form
    124,780.86/172,197.72 = 68,192.28/x
  3. Step 3: Cross multiply
    124,780.86x = 172,197.72 × 68,192.28
  4. Step 4: Simplify right side
    124,780.86x = 11,742,555,137.60
  5. Step 5: Solve for x
    x = 11,742,555,137.60/124,780.86
  6. Step 6: Final answer
    x = 94,105.42

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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.