Home / 109,636.36-151,299.30-64,315.11

Finding the Fourth Proportional to 109,636.36, 151,299.30 and 64,315.11

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Solution

The fourth proportional to 109,636.36, 151,299.30 and 64,315.11 is: 88,755.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,636.36 : 151,299.30 = 64,315.11 : x
  2. Step 2: Convert to fraction form
    109,636.36/151,299.30 = 64,315.11/x
  3. Step 3: Cross multiply
    109,636.36x = 151,299.30 × 64,315.11
  4. Step 4: Simplify right side
    109,636.36x = 9,730,831,285.52
  5. Step 5: Solve for x
    x = 9,730,831,285.52/109,636.36
  6. Step 6: Final answer
    x = 88,755.51

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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.