Home / 156,379.36-215,806.83-88,392.26

Finding the Fourth Proportional to 156,379.36, 215,806.83 and 88,392.26

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Solution

The fourth proportional to 156,379.36, 215,806.83 and 88,392.26 is: 121,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,379.36 : 215,806.83 = 88,392.26 : x
  2. Step 2: Convert to fraction form
    156,379.36/215,806.83 = 88,392.26/x
  3. Step 3: Cross multiply
    156,379.36x = 215,806.83 × 88,392.26
  4. Step 4: Simplify right side
    156,379.36x = 19,075,654,132.39
  5. Step 5: Solve for x
    x = 19,075,654,132.39/156,379.36
  6. Step 6: Final answer
    x = 121,983.20

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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.