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Finding the Fourth Proportional to 139,007.43, 191,850.75 and 88,024.82

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Solution

The fourth proportional to 139,007.43, 191,850.75 and 88,024.82 is: 121,487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,007.43 : 191,850.75 = 88,024.82 : x
  2. Step 2: Convert to fraction form
    139,007.43/191,850.75 = 88,024.82/x
  3. Step 3: Cross multiply
    139,007.43x = 191,850.75 × 88,024.82
  4. Step 4: Simplify right side
    139,007.43x = 16,887,626,776.36
  5. Step 5: Solve for x
    x = 16,887,626,776.36/139,007.43
  6. Step 6: Final answer
    x = 121,487.22

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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.