Home / 140,566.85-193,982.01-76,904.50

Finding the Fourth Proportional to 140,566.85, 193,982.01 and 76,904.50

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Solution

The fourth proportional to 140,566.85, 193,982.01 and 76,904.50 is: 106,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,566.85 : 193,982.01 = 76,904.50 : x
  2. Step 2: Convert to fraction form
    140,566.85/193,982.01 = 76,904.50/x
  3. Step 3: Cross multiply
    140,566.85x = 193,982.01 × 76,904.50
  4. Step 4: Simplify right side
    140,566.85x = 14,918,089,488.05
  5. Step 5: Solve for x
    x = 14,918,089,488.05/140,566.85
  6. Step 6: Final answer
    x = 106,128.08

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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.