Home / 140,325.76-193,647.12-76,661.92

Finding the Fourth Proportional to 140,325.76, 193,647.12 and 76,661.92

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Solution

The fourth proportional to 140,325.76, 193,647.12 and 76,661.92 is: 105,792.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,325.76 : 193,647.12 = 76,661.92 : x
  2. Step 2: Convert to fraction form
    140,325.76/193,647.12 = 76,661.92/x
  3. Step 3: Cross multiply
    140,325.76x = 193,647.12 × 76,661.92
  4. Step 4: Simplify right side
    140,325.76x = 14,845,360,021.67
  5. Step 5: Solve for x
    x = 14,845,360,021.67/140,325.76
  6. Step 6: Final answer
    x = 105,792.12

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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.