Home / 156,365.30-215,704.69-98,907.82

Finding the Fourth Proportional to 156,365.30, 215,704.69 and 98,907.82

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Solution

The fourth proportional to 156,365.30, 215,704.69 and 98,907.82 is: 136,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,365.30 : 215,704.69 = 98,907.82 : x
  2. Step 2: Convert to fraction form
    156,365.30/215,704.69 = 98,907.82/x
  3. Step 3: Cross multiply
    156,365.30x = 215,704.69 × 98,907.82
  4. Step 4: Simplify right side
    156,365.30x = 21,334,879,865.14
  5. Step 5: Solve for x
    x = 21,334,879,865.14/156,365.30
  6. Step 6: Final answer
    x = 136,442.55

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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.