Home / 144,805.19-199,836.57-81,140.63

Finding the Fourth Proportional to 144,805.19, 199,836.57 and 81,140.63

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Solution

The fourth proportional to 144,805.19, 199,836.57 and 81,140.63 is: 111,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,805.19 : 199,836.57 = 81,140.63 : x
  2. Step 2: Convert to fraction form
    144,805.19/199,836.57 = 81,140.63/x
  3. Step 3: Cross multiply
    144,805.19x = 199,836.57 × 81,140.63
  4. Step 4: Simplify right side
    144,805.19x = 16,214,865,186.84
  5. Step 5: Solve for x
    x = 16,214,865,186.84/144,805.19
  6. Step 6: Final answer
    x = 111,977.10

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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.