Home / 109,269.15-163,649.64-105,480.86

Finding the Fourth Proportional to 109,269.15, 163,649.64 and 105,480.86

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Solution

The fourth proportional to 109,269.15, 163,649.64 and 105,480.86 is: 157,976.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,269.15 : 163,649.64 = 105,480.86 : x
  2. Step 2: Convert to fraction form
    109,269.15/163,649.64 = 105,480.86/x
  3. Step 3: Cross multiply
    109,269.15x = 163,649.64 × 105,480.86
  4. Step 4: Simplify right side
    109,269.15x = 17,261,903,947.64
  5. Step 5: Solve for x
    x = 17,261,903,947.64/109,269.15
  6. Step 6: Final answer
    x = 157,976.01

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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.