Home / 109,502.36-164,153.10-72,002.60

Finding the Fourth Proportional to 109,502.36, 164,153.10 and 72,002.60

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Solution

The fourth proportional to 109,502.36, 164,153.10 and 72,002.60 is: 107,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,502.36 : 164,153.10 = 72,002.60 : x
  2. Step 2: Convert to fraction form
    109,502.36/164,153.10 = 72,002.60/x
  3. Step 3: Cross multiply
    109,502.36x = 164,153.10 × 72,002.60
  4. Step 4: Simplify right side
    109,502.36x = 11,819,449,998.06
  5. Step 5: Solve for x
    x = 11,819,449,998.06/109,502.36
  6. Step 6: Final answer
    x = 107,937.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.