Home / 151,258.43-208,581.91-100,253.45

Finding the Fourth Proportional to 151,258.43, 208,581.91 and 100,253.45

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Solution

The fourth proportional to 151,258.43, 208,581.91 and 100,253.45 is: 138,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,258.43 : 208,581.91 = 100,253.45 : x
  2. Step 2: Convert to fraction form
    151,258.43/208,581.91 = 100,253.45/x
  3. Step 3: Cross multiply
    151,258.43x = 208,581.91 × 100,253.45
  4. Step 4: Simplify right side
    151,258.43x = 20,911,054,791.55
  5. Step 5: Solve for x
    x = 20,911,054,791.55/151,258.43
  6. Step 6: Final answer
    x = 138,247.21

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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.