Home / 100,763.72-139,039.26-60,468.92

Finding the Fourth Proportional to 100,763.72, 139,039.26 and 60,468.92

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Solution

The fourth proportional to 100,763.72, 139,039.26 and 60,468.92 is: 83,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,763.72 : 139,039.26 = 60,468.92 : x
  2. Step 2: Convert to fraction form
    100,763.72/139,039.26 = 60,468.92/x
  3. Step 3: Cross multiply
    100,763.72x = 139,039.26 × 60,468.92
  4. Step 4: Simplify right side
    100,763.72x = 8,407,553,889.80
  5. Step 5: Solve for x
    x = 8,407,553,889.80/100,763.72
  6. Step 6: Final answer
    x = 83,438.30

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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.