Home / 102,002.74-140,776.73-61,716.84

Finding the Fourth Proportional to 102,002.74, 140,776.73 and 61,716.84

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Solution

The fourth proportional to 102,002.74, 140,776.73 and 61,716.84 is: 85,177.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,002.74 : 140,776.73 = 61,716.84 : x
  2. Step 2: Convert to fraction form
    102,002.74/140,776.73 = 61,716.84/x
  3. Step 3: Cross multiply
    102,002.74x = 140,776.73 × 61,716.84
  4. Step 4: Simplify right side
    102,002.74x = 8,688,294,633.98
  5. Step 5: Solve for x
    x = 8,688,294,633.98/102,002.74
  6. Step 6: Final answer
    x = 85,177.07

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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.