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Finding the Fourth Proportional to 144,246.85, 199,056.72 and 78,833.05

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Solution

The fourth proportional to 144,246.85, 199,056.72 and 78,833.05 is: 108,787.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,246.85 : 199,056.72 = 78,833.05 : x
  2. Step 2: Convert to fraction form
    144,246.85/199,056.72 = 78,833.05/x
  3. Step 3: Cross multiply
    144,246.85x = 199,056.72 × 78,833.05
  4. Step 4: Simplify right side
    144,246.85x = 15,692,248,360.60
  5. Step 5: Solve for x
    x = 15,692,248,360.60/144,246.85
  6. Step 6: Final answer
    x = 108,787.46

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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.