Home / 109,564.20-164,411.10-72,232.20

Finding the Fourth Proportional to 109,564.20, 164,411.10 and 72,232.20

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Solution

The fourth proportional to 109,564.20, 164,411.10 and 72,232.20 is: 108,391.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,564.20 : 164,411.10 = 72,232.20 : x
  2. Step 2: Convert to fraction form
    109,564.20/164,411.10 = 72,232.20/x
  3. Step 3: Cross multiply
    109,564.20x = 164,411.10 × 72,232.20
  4. Step 4: Simplify right side
    109,564.20x = 11,875,775,457.42
  5. Step 5: Solve for x
    x = 11,875,775,457.42/109,564.20
  6. Step 6: Final answer
    x = 108,391.02

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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.