Home / 139,276.97-192,204.33-75,614.76

Finding the Fourth Proportional to 139,276.97, 192,204.33 and 75,614.76

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Solution

The fourth proportional to 139,276.97, 192,204.33 and 75,614.76 is: 104,349.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,276.97 : 192,204.33 = 75,614.76 : x
  2. Step 2: Convert to fraction form
    139,276.97/192,204.33 = 75,614.76/x
  3. Step 3: Cross multiply
    139,276.97x = 192,204.33 × 75,614.76
  4. Step 4: Simplify right side
    139,276.97x = 14,533,484,283.91
  5. Step 5: Solve for x
    x = 14,533,484,283.91/139,276.97
  6. Step 6: Final answer
    x = 104,349.52

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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.