Home / 105,491.80-145,542.66-60,137.10

Finding the Fourth Proportional to 105,491.80, 145,542.66 and 60,137.10

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Solution

The fourth proportional to 105,491.80, 145,542.66 and 60,137.10 is: 82,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,491.80 : 145,542.66 = 60,137.10 : x
  2. Step 2: Convert to fraction form
    105,491.80/145,542.66 = 60,137.10/x
  3. Step 3: Cross multiply
    105,491.80x = 145,542.66 × 60,137.10
  4. Step 4: Simplify right side
    105,491.80x = 8,752,513,498.69
  5. Step 5: Solve for x
    x = 8,752,513,498.69/105,491.80
  6. Step 6: Final answer
    x = 82,968.66

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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.