Home / 156,264,105.25-215,609,534.96-89,261,645.79

Finding the Fourth Proportional to 156,264,105.25, 215,609,534.96 and 89,261,645.79

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Solution

The fourth proportional to 156,264,105.25, 215,609,534.96 and 89,261,645.79 is: 123,161,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,264,105.25 : 215,609,534.96 = 89,261,645.79 : x
  2. Step 2: Convert to fraction form
    156,264,105.25/215,609,534.96 = 89,261,645.79/x
  3. Step 3: Cross multiply
    156,264,105.25x = 215,609,534.96 × 89,261,645.79
  4. Step 4: Simplify right side
    156,264,105.25x = 19,245,661,939,410,020
  5. Step 5: Solve for x
    x = 19,245,661,939,410,020/156,264,105.25
  6. Step 6: Final answer
    x = 123,161,118.21

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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.