Home / 150,899.07-208,239.60-81,987.93

Finding the Fourth Proportional to 150,899.07, 208,239.60 and 81,987.93

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Solution

The fourth proportional to 150,899.07, 208,239.60 and 81,987.93 is: 113,142.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,899.07 : 208,239.60 = 81,987.93 : x
  2. Step 2: Convert to fraction form
    150,899.07/208,239.60 = 81,987.93/x
  3. Step 3: Cross multiply
    150,899.07x = 208,239.60 × 81,987.93
  4. Step 4: Simplify right side
    150,899.07x = 17,073,133,748.03
  5. Step 5: Solve for x
    x = 17,073,133,748.03/150,899.07
  6. Step 6: Final answer
    x = 113,142.74

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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.