Home / 140,147.48-193,404.20-76,486.64

Finding the Fourth Proportional to 140,147.48, 193,404.20 and 76,486.64

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Solution

The fourth proportional to 140,147.48, 193,404.20 and 76,486.64 is: 105,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,147.48 : 193,404.20 = 76,486.64 : x
  2. Step 2: Convert to fraction form
    140,147.48/193,404.20 = 76,486.64/x
  3. Step 3: Cross multiply
    140,147.48x = 193,404.20 × 76,486.64
  4. Step 4: Simplify right side
    140,147.48x = 14,792,837,419.89
  5. Step 5: Solve for x
    x = 14,792,837,419.89/140,147.48
  6. Step 6: Final answer
    x = 105,551.93

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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.