Home / 138,931.48-208,397.73-33,750.45

Finding the Fourth Proportional to 138,931.48, 208,397.73 and 33,750.45

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Solution

The fourth proportional to 138,931.48, 208,397.73 and 33,750.45 is: 50,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,931.48 : 208,397.73 = 33,750.45 : x
  2. Step 2: Convert to fraction form
    138,931.48/208,397.73 = 33,750.45/x
  3. Step 3: Cross multiply
    138,931.48x = 208,397.73 × 33,750.45
  4. Step 4: Simplify right side
    138,931.48x = 7,033,516,124.49
  5. Step 5: Solve for x
    x = 7,033,516,124.49/138,931.48
  6. Step 6: Final answer
    x = 50,625.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.