Home / 156,235.57-215,618.36-88,265.02

Finding the Fourth Proportional to 156,235.57, 215,618.36 and 88,265.02

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Solution

The fourth proportional to 156,235.57, 215,618.36 and 88,265.02 is: 121,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,235.57 : 215,618.36 = 88,265.02 : x
  2. Step 2: Convert to fraction form
    156,235.57/215,618.36 = 88,265.02/x
  3. Step 3: Cross multiply
    156,235.57x = 215,618.36 × 88,265.02
  4. Step 4: Simplify right side
    156,235.57x = 19,031,558,539.38
  5. Step 5: Solve for x
    x = 19,031,558,539.38/156,235.57
  6. Step 6: Final answer
    x = 121,813.22

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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.