Home / 156,351.10-215,685.23-98,893.64

Finding the Fourth Proportional to 156,351.10, 215,685.23 and 98,893.64

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Solution

The fourth proportional to 156,351.10, 215,685.23 and 98,893.64 is: 136,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,351.10 : 215,685.23 = 98,893.64 : x
  2. Step 2: Convert to fraction form
    156,351.10/215,685.23 = 98,893.64/x
  3. Step 3: Cross multiply
    156,351.10x = 215,685.23 × 98,893.64
  4. Step 4: Simplify right side
    156,351.10x = 21,329,897,488.94
  5. Step 5: Solve for x
    x = 21,329,897,488.94/156,351.10
  6. Step 6: Final answer
    x = 136,423.08

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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.