Home / 140,195.43-193,468.68-76,533.21

Finding the Fourth Proportional to 140,195.43, 193,468.68 and 76,533.21

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Solution

The fourth proportional to 140,195.43, 193,468.68 and 76,533.21 is: 105,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,195.43 : 193,468.68 = 76,533.21 : x
  2. Step 2: Convert to fraction form
    140,195.43/193,468.68 = 76,533.21/x
  3. Step 3: Cross multiply
    140,195.43x = 193,468.68 × 76,533.21
  4. Step 4: Simplify right side
    140,195.43x = 14,806,779,114.86
  5. Step 5: Solve for x
    x = 14,806,779,114.86/140,195.43
  6. Step 6: Final answer
    x = 105,615.28

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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.