Home / 140,102.85-193,342.56-76,441.98

Finding the Fourth Proportional to 140,102.85, 193,342.56 and 76,441.98

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Solution

The fourth proportional to 140,102.85, 193,342.56 and 76,441.98 is: 105,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,102.85 : 193,342.56 = 76,441.98 : x
  2. Step 2: Convert to fraction form
    140,102.85/193,342.56 = 76,441.98/x
  3. Step 3: Cross multiply
    140,102.85x = 193,342.56 × 76,441.98
  4. Step 4: Simplify right side
    140,102.85x = 14,779,488,104.67
  5. Step 5: Solve for x
    x = 14,779,488,104.67/140,102.85
  6. Step 6: Final answer
    x = 105,490.27

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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.