Home / 124,780.21-172,196.76-68,191.58

Finding the Fourth Proportional to 124,780.21, 172,196.76 and 68,191.58

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Solution

The fourth proportional to 124,780.21, 172,196.76 and 68,191.58 is: 94,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,780.21 : 172,196.76 = 68,191.58 : x
  2. Step 2: Convert to fraction form
    124,780.21/172,196.76 = 68,191.58/x
  3. Step 3: Cross multiply
    124,780.21x = 172,196.76 × 68,191.58
  4. Step 4: Simplify right side
    124,780.21x = 11,742,369,135.28
  5. Step 5: Solve for x
    x = 11,742,369,135.28/124,780.21
  6. Step 6: Final answer
    x = 94,104.42

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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.