Home / 103,170,881.72-142,375,811.96-56,760,139.19

Finding the Fourth Proportional to 103,170,881.72, 142,375,811.96 and 56,760,139.19

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Solution

The fourth proportional to 103,170,881.72, 142,375,811.96 and 56,760,139.19 is: 78,328,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,170,881.72 : 142,375,811.96 = 56,760,139.19 : x
  2. Step 2: Convert to fraction form
    103,170,881.72/142,375,811.96 = 56,760,139.19/x
  3. Step 3: Cross multiply
    103,170,881.72x = 142,375,811.96 × 56,760,139.19
  4. Step 4: Simplify right side
    103,170,881.72x = 8,081,270,904,138,867
  5. Step 5: Solve for x
    x = 8,081,270,904,138,867/103,170,881.72
  6. Step 6: Final answer
    x = 78,328,989.43

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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.