Home / 137,352.48-189,562.05-83,668.92

Finding the Fourth Proportional to 137,352.48, 189,562.05 and 83,668.92

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Solution

The fourth proportional to 137,352.48, 189,562.05 and 83,668.92 is: 115,472.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,352.48 : 189,562.05 = 83,668.92 : x
  2. Step 2: Convert to fraction form
    137,352.48/189,562.05 = 83,668.92/x
  3. Step 3: Cross multiply
    137,352.48x = 189,562.05 × 83,668.92
  4. Step 4: Simplify right side
    137,352.48x = 15,860,451,996.49
  5. Step 5: Solve for x
    x = 15,860,451,996.49/137,352.48
  6. Step 6: Final answer
    x = 115,472.63

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1.5x scale

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.