Home / 139,366.92-191,974.68-112,434.02

Finding the Fourth Proportional to 139,366.92, 191,974.68 and 112,434.02

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Solution

The fourth proportional to 139,366.92, 191,974.68 and 112,434.02 is: 154,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,366.92 : 191,974.68 = 112,434.02 : x
  2. Step 2: Convert to fraction form
    139,366.92/191,974.68 = 112,434.02/x
  3. Step 3: Cross multiply
    139,366.92x = 191,974.68 × 112,434.02
  4. Step 4: Simplify right side
    139,366.92x = 21,584,484,050.74
  5. Step 5: Solve for x
    x = 21,584,484,050.74/139,366.92
  6. Step 6: Final answer
    x = 154,875.23

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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.