Home / 141,776.96-195,644.84-78,113.36

Finding the Fourth Proportional to 141,776.96, 195,644.84 and 78,113.36

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Solution

The fourth proportional to 141,776.96, 195,644.84 and 78,113.36 is: 107,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,776.96 : 195,644.84 = 78,113.36 : x
  2. Step 2: Convert to fraction form
    141,776.96/195,644.84 = 78,113.36/x
  3. Step 3: Cross multiply
    141,776.96x = 195,644.84 × 78,113.36
  4. Step 4: Simplify right side
    141,776.96x = 15,282,475,819.06
  5. Step 5: Solve for x
    x = 15,282,475,819.06/141,776.96
  6. Step 6: Final answer
    x = 107,792.38

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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.