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Finding the Fourth Proportional to 79,263.72, 118,612.26 and 68,856.30

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Solution

The fourth proportional to 79,263.72, 118,612.26 and 68,856.30 is: 103,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,263.72 : 118,612.26 = 68,856.30 : x
  2. Step 2: Convert to fraction form
    79,263.72/118,612.26 = 68,856.30/x
  3. Step 3: Cross multiply
    79,263.72x = 118,612.26 × 68,856.30
  4. Step 4: Simplify right side
    79,263.72x = 8,167,201,358.24
  5. Step 5: Solve for x
    x = 8,167,201,358.24/79,263.72
  6. Step 6: Final answer
    x = 103,038.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.