Home / 140,085.53-193,317.60-76,422.87

Finding the Fourth Proportional to 140,085.53, 193,317.60 and 76,422.87

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Solution

The fourth proportional to 140,085.53, 193,317.60 and 76,422.87 is: 105,463.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,085.53 : 193,317.60 = 76,422.87 : x
  2. Step 2: Convert to fraction form
    140,085.53/193,317.60 = 76,422.87/x
  3. Step 3: Cross multiply
    140,085.53x = 193,317.60 × 76,422.87
  4. Step 4: Simplify right side
    140,085.53x = 14,773,885,233.98
  5. Step 5: Solve for x
    x = 14,773,885,233.98/140,085.53
  6. Step 6: Final answer
    x = 105,463.32

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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.