Home / 89,649.12-134,703.18-67,669.50

Finding the Fourth Proportional to 89,649.12, 134,703.18 and 67,669.50

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Solution

The fourth proportional to 89,649.12, 134,703.18 and 67,669.50 is: 101,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,649.12 : 134,703.18 = 67,669.50 : x
  2. Step 2: Convert to fraction form
    89,649.12/134,703.18 = 67,669.50/x
  3. Step 3: Cross multiply
    89,649.12x = 134,703.18 × 67,669.50
  4. Step 4: Simplify right side
    89,649.12x = 9,115,296,839.01
  5. Step 5: Solve for x
    x = 9,115,296,839.01/89,649.12
  6. Step 6: Final answer
    x = 101,677.48

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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.