Home / 138,844.23-191,605.03-75,182.02

Finding the Fourth Proportional to 138,844.23, 191,605.03 and 75,182.02

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Solution

The fourth proportional to 138,844.23, 191,605.03 and 75,182.02 is: 103,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,844.23 : 191,605.03 = 75,182.02 : x
  2. Step 2: Convert to fraction form
    138,844.23/191,605.03 = 75,182.02/x
  3. Step 3: Cross multiply
    138,844.23x = 191,605.03 × 75,182.02
  4. Step 4: Simplify right side
    138,844.23x = 14,405,254,031.27
  5. Step 5: Solve for x
    x = 14,405,254,031.27/138,844.23
  6. Step 6: Final answer
    x = 103,751.19

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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.