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Finding the Fourth Proportional to 144,281.79, 199,108.45 and 80,619.64

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Solution

The fourth proportional to 144,281.79, 199,108.45 and 80,619.64 is: 111,254.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,281.79 : 199,108.45 = 80,619.64 : x
  2. Step 2: Convert to fraction form
    144,281.79/199,108.45 = 80,619.64/x
  3. Step 3: Cross multiply
    144,281.79x = 199,108.45 × 80,619.64
  4. Step 4: Simplify right side
    144,281.79x = 16,052,050,161.32
  5. Step 5: Solve for x
    x = 16,052,050,161.32/144,281.79
  6. Step 6: Final answer
    x = 111,254.86

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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.