Home / 144,319.30-199,162.90-80,661.22

Finding the Fourth Proportional to 144,319.30, 199,162.90 and 80,661.22

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Solution

The fourth proportional to 144,319.30, 199,162.90 and 80,661.22 is: 111,313.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,319.30 : 199,162.90 = 80,661.22 : x
  2. Step 2: Convert to fraction form
    144,319.30/199,162.90 = 80,661.22/x
  3. Step 3: Cross multiply
    144,319.30x = 199,162.90 × 80,661.22
  4. Step 4: Simplify right side
    144,319.30x = 16,064,722,492.74
  5. Step 5: Solve for x
    x = 16,064,722,492.74/144,319.30
  6. Step 6: Final answer
    x = 111,313.75

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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.