Home / 156,627.60-216,093.48-100,072.08

Finding the Fourth Proportional to 156,627.60, 216,093.48 and 100,072.08

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Solution

The fourth proportional to 156,627.60, 216,093.48 and 100,072.08 is: 138,065.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,627.60 : 216,093.48 = 100,072.08 : x
  2. Step 2: Convert to fraction form
    156,627.60/216,093.48 = 100,072.08/x
  3. Step 3: Cross multiply
    156,627.60x = 216,093.48 × 100,072.08
  4. Step 4: Simplify right side
    156,627.60x = 21,624,924,018.04
  5. Step 5: Solve for x
    x = 21,624,924,018.04/156,627.60
  6. Step 6: Final answer
    x = 138,065.86

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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.