Home / 140,420.48-193,732.97-79,948.35

Finding the Fourth Proportional to 140,420.48, 193,732.97 and 79,948.35

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Solution

The fourth proportional to 140,420.48, 193,732.97 and 79,948.35 is: 110,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,420.48 : 193,732.97 = 79,948.35 : x
  2. Step 2: Convert to fraction form
    140,420.48/193,732.97 = 79,948.35/x
  3. Step 3: Cross multiply
    140,420.48x = 193,732.97 × 79,948.35
  4. Step 4: Simplify right side
    140,420.48x = 15,488,630,892.36
  5. Step 5: Solve for x
    x = 15,488,630,892.36/140,420.48
  6. Step 6: Final answer
    x = 110,301.80

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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.