Home / 138,977.32-191,854.83-93,115.94

Finding the Fourth Proportional to 138,977.32, 191,854.83 and 93,115.94

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Solution

The fourth proportional to 138,977.32, 191,854.83 and 93,115.94 is: 128,544.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,977.32 : 191,854.83 = 93,115.94 : x
  2. Step 2: Convert to fraction form
    138,977.32/191,854.83 = 93,115.94/x
  3. Step 3: Cross multiply
    138,977.32x = 191,854.83 × 93,115.94
  4. Step 4: Simplify right side
    138,977.32x = 17,864,742,838.99
  5. Step 5: Solve for x
    x = 17,864,742,838.99/138,977.32
  6. Step 6: Final answer
    x = 128,544.30

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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.