Home / 103,550.10-142,816.95-67,211.82

Finding the Fourth Proportional to 103,550.10, 142,816.95 and 67,211.82

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Solution

The fourth proportional to 103,550.10, 142,816.95 and 67,211.82 is: 92,698.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,550.10 : 142,816.95 = 67,211.82 : x
  2. Step 2: Convert to fraction form
    103,550.10/142,816.95 = 67,211.82/x
  3. Step 3: Cross multiply
    103,550.10x = 142,816.95 × 67,211.82
  4. Step 4: Simplify right side
    103,550.10x = 9,598,987,136.35
  5. Step 5: Solve for x
    x = 9,598,987,136.35/103,550.10
  6. Step 6: Final answer
    x = 92,698.97

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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.