Home / 104,378.38-156,595.82-74,430.45

Finding the Fourth Proportional to 104,378.38, 156,595.82 and 74,430.45

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Solution

The fourth proportional to 104,378.38, 156,595.82 and 74,430.45 is: 111,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,378.38 : 156,595.82 = 74,430.45 : x
  2. Step 2: Convert to fraction form
    104,378.38/156,595.82 = 74,430.45/x
  3. Step 3: Cross multiply
    104,378.38x = 156,595.82 × 74,430.45
  4. Step 4: Simplify right side
    104,378.38x = 11,655,496,978.57
  5. Step 5: Solve for x
    x = 11,655,496,978.57/104,378.38
  6. Step 6: Final answer
    x = 111,665.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.