Home / 151,239.97-208,689.91-100,173.52

Finding the Fourth Proportional to 151,239.97, 208,689.91 and 100,173.52

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Solution

The fourth proportional to 151,239.97, 208,689.91 and 100,173.52 is: 138,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,239.97 : 208,689.91 = 100,173.52 : x
  2. Step 2: Convert to fraction form
    151,239.97/208,689.91 = 100,173.52/x
  3. Step 3: Cross multiply
    151,239.97x = 208,689.91 × 100,173.52
  4. Step 4: Simplify right side
    151,239.97x = 20,905,202,101.02
  5. Step 5: Solve for x
    x = 20,905,202,101.02/151,239.97
  6. Step 6: Final answer
    x = 138,225.38

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1.5x scale

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.