Home / 139,663.32-192,732.24-76,001.28

Finding the Fourth Proportional to 139,663.32, 192,732.24 and 76,001.28

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Solution

The fourth proportional to 139,663.32, 192,732.24 and 76,001.28 is: 104,880.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,663.32 : 192,732.24 = 76,001.28 : x
  2. Step 2: Convert to fraction form
    139,663.32/192,732.24 = 76,001.28/x
  3. Step 3: Cross multiply
    139,663.32x = 192,732.24 × 76,001.28
  4. Step 4: Simplify right side
    139,663.32x = 14,647,896,937.27
  5. Step 5: Solve for x
    x = 14,647,896,937.27/139,663.32
  6. Step 6: Final answer
    x = 104,880.06

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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.