Home / 138,769.29-191,506.26-85,043.93

Finding the Fourth Proportional to 138,769.29, 191,506.26 and 85,043.93

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Solution

The fourth proportional to 138,769.29, 191,506.26 and 85,043.93 is: 117,363.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,769.29 : 191,506.26 = 85,043.93 : x
  2. Step 2: Convert to fraction form
    138,769.29/191,506.26 = 85,043.93/x
  3. Step 3: Cross multiply
    138,769.29x = 191,506.26 × 85,043.93
  4. Step 4: Simplify right side
    138,769.29x = 16,286,444,970.00
  5. Step 5: Solve for x
    x = 16,286,444,970.00/138,769.29
  6. Step 6: Final answer
    x = 117,363.47

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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.