Home / 156,386.64-215,808.30-92,686.62

Finding the Fourth Proportional to 156,386.64, 215,808.30 and 92,686.62

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Solution

The fourth proportional to 156,386.64, 215,808.30 and 92,686.62 is: 127,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,386.64 : 215,808.30 = 92,686.62 : x
  2. Step 2: Convert to fraction form
    156,386.64/215,808.30 = 92,686.62/x
  3. Step 3: Cross multiply
    156,386.64x = 215,808.30 × 92,686.62
  4. Step 4: Simplify right side
    156,386.64x = 20,002,541,894.95
  5. Step 5: Solve for x
    x = 20,002,541,894.95/156,386.64
  6. Step 6: Final answer
    x = 127,904.42

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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.