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Finding the Fourth Proportional to 113,296, 156,348.75 and 63,004.72

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Solution

The fourth proportional to 113,296, 156,348.75 and 63,004.72 is: 86,946.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,296 : 156,348.75 = 63,004.72 : x
  2. Step 2: Convert to fraction form
    113,296/156,348.75 = 63,004.72/x
  3. Step 3: Cross multiply
    113,296x = 156,348.75 × 63,004.72
  4. Step 4: Simplify right side
    113,296x = 9,850,709,216.10
  5. Step 5: Solve for x
    x = 9,850,709,216.10/113,296
  6. Step 6: Final answer
    x = 86,946.66

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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.