Home / 140,188.80-193,465.08-79,757.94

Finding the Fourth Proportional to 140,188.80, 193,465.08 and 79,757.94

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Solution

The fourth proportional to 140,188.80, 193,465.08 and 79,757.94 is: 110,068.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,188.80 : 193,465.08 = 79,757.94 : x
  2. Step 2: Convert to fraction form
    140,188.80/193,465.08 = 79,757.94/x
  3. Step 3: Cross multiply
    140,188.80x = 193,465.08 × 79,757.94
  4. Step 4: Simplify right side
    140,188.80x = 15,430,376,242.74
  5. Step 5: Solve for x
    x = 15,430,376,242.74/140,188.80
  6. Step 6: Final answer
    x = 110,068.54

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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.