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Finding the Fourth Proportional to 113,159.90, 156,095.70 and 70,644.62

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Solution

The fourth proportional to 113,159.90, 156,095.70 and 70,644.62 is: 97,449.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,159.90 : 156,095.70 = 70,644.62 : x
  2. Step 2: Convert to fraction form
    113,159.90/156,095.70 = 70,644.62/x
  3. Step 3: Cross multiply
    113,159.90x = 156,095.70 × 70,644.62
  4. Step 4: Simplify right side
    113,159.90x = 11,027,320,629.66
  5. Step 5: Solve for x
    x = 11,027,320,629.66/113,159.90
  6. Step 6: Final answer
    x = 97,449.02

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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.