Home / 144,313.18-199,161.03-80,656.06

Finding the Fourth Proportional to 144,313.18, 199,161.03 and 80,656.06

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Solution

The fourth proportional to 144,313.18, 199,161.03 and 80,656.06 is: 111,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,313.18 : 199,161.03 = 80,656.06 : x
  2. Step 2: Convert to fraction form
    144,313.18/199,161.03 = 80,656.06/x
  3. Step 3: Cross multiply
    144,313.18x = 199,161.03 × 80,656.06
  4. Step 4: Simplify right side
    144,313.18x = 16,063,543,985.34
  5. Step 5: Solve for x
    x = 16,063,543,985.34/144,313.18
  6. Step 6: Final answer
    x = 111,310.30

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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.