Home / 144,300.59-199,135.08-80,638.38

Finding the Fourth Proportional to 144,300.59, 199,135.08 and 80,638.38

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Solution

The fourth proportional to 144,300.59, 199,135.08 and 80,638.38 is: 111,281.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,300.59 : 199,135.08 = 80,638.38 : x
  2. Step 2: Convert to fraction form
    144,300.59/199,135.08 = 80,638.38/x
  3. Step 3: Cross multiply
    144,300.59x = 199,135.08 × 80,638.38
  4. Step 4: Simplify right side
    144,300.59x = 16,057,930,999.13
  5. Step 5: Solve for x
    x = 16,057,930,999.13/144,300.59
  6. Step 6: Final answer
    x = 111,281.12

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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.