Home / 144,373.10-199,239.45-80,710.70

Finding the Fourth Proportional to 144,373.10, 199,239.45 and 80,710.70

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Solution

The fourth proportional to 144,373.10, 199,239.45 and 80,710.70 is: 111,383.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,373.10 : 199,239.45 = 80,710.70 : x
  2. Step 2: Convert to fraction form
    144,373.10/199,239.45 = 80,710.70/x
  3. Step 3: Cross multiply
    144,373.10x = 199,239.45 × 80,710.70
  4. Step 4: Simplify right side
    144,373.10x = 16,080,755,477.12
  5. Step 5: Solve for x
    x = 16,080,755,477.12/144,373.10
  6. Step 6: Final answer
    x = 111,383.32

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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.