Home / 141,661.09-195,491.86-77,998.90

Finding the Fourth Proportional to 141,661.09, 195,491.86 and 77,998.90

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Solution

The fourth proportional to 141,661.09, 195,491.86 and 77,998.90 is: 107,638.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,661.09 : 195,491.86 = 77,998.90 : x
  2. Step 2: Convert to fraction form
    141,661.09/195,491.86 = 77,998.90/x
  3. Step 3: Cross multiply
    141,661.09x = 195,491.86 × 77,998.90
  4. Step 4: Simplify right side
    141,661.09x = 15,248,150,038.95
  5. Step 5: Solve for x
    x = 15,248,150,038.95/141,661.09
  6. Step 6: Final answer
    x = 107,638.24

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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.