Home / 109,649.48-151,299.90-64,310.36

Finding the Fourth Proportional to 109,649.48, 151,299.90 and 64,310.36

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Solution

The fourth proportional to 109,649.48, 151,299.90 and 64,310.36 is: 88,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,649.48 : 151,299.90 = 64,310.36 : x
  2. Step 2: Convert to fraction form
    109,649.48/151,299.90 = 64,310.36/x
  3. Step 3: Cross multiply
    109,649.48x = 151,299.90 × 64,310.36
  4. Step 4: Simplify right side
    109,649.48x = 9,730,151,036.96
  5. Step 5: Solve for x
    x = 9,730,151,036.96/109,649.48
  6. Step 6: Final answer
    x = 88,738.69

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1.5x scale

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.