Home / 113,282.10-156,325.32-72,997.56

Finding the Fourth Proportional to 113,282.10, 156,325.32 and 72,997.56

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Solution

The fourth proportional to 113,282.10, 156,325.32 and 72,997.56 is: 100,734.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,282.10 : 156,325.32 = 72,997.56 : x
  2. Step 2: Convert to fraction form
    113,282.10/156,325.32 = 72,997.56/x
  3. Step 3: Cross multiply
    113,282.10x = 156,325.32 × 72,997.56
  4. Step 4: Simplify right side
    113,282.10x = 11,411,366,926.22
  5. Step 5: Solve for x
    x = 11,411,366,926.22/113,282.10
  6. Step 6: Final answer
    x = 100,734.07

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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.