Home / 138,749.74-191,475.24-75,087.52

Finding the Fourth Proportional to 138,749.74, 191,475.24 and 75,087.52

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Solution

The fourth proportional to 138,749.74, 191,475.24 and 75,087.52 is: 103,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,749.74 : 191,475.24 = 75,087.52 : x
  2. Step 2: Convert to fraction form
    138,749.74/191,475.24 = 75,087.52/x
  3. Step 3: Cross multiply
    138,749.74x = 191,475.24 × 75,087.52
  4. Step 4: Simplify right side
    138,749.74x = 14,377,400,913.00
  5. Step 5: Solve for x
    x = 14,377,400,913.00/138,749.74
  6. Step 6: Final answer
    x = 103,621.10

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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.