Home / 102,086.26-140,881.48-56,766.15

Finding the Fourth Proportional to 102,086.26, 140,881.48 and 56,766.15

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Solution

The fourth proportional to 102,086.26, 140,881.48 and 56,766.15 is: 78,338.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,086.26 : 140,881.48 = 56,766.15 : x
  2. Step 2: Convert to fraction form
    102,086.26/140,881.48 = 56,766.15/x
  3. Step 3: Cross multiply
    102,086.26x = 140,881.48 × 56,766.15
  4. Step 4: Simplify right side
    102,086.26x = 7,997,299,083.99
  5. Step 5: Solve for x
    x = 7,997,299,083.99/102,086.26
  6. Step 6: Final answer
    x = 78,338.64

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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.