Home / 142,513.35-196,637.79-85,923.51

Finding the Fourth Proportional to 142,513.35, 196,637.79 and 85,923.51

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Solution

The fourth proportional to 142,513.35, 196,637.79 and 85,923.51 is: 118,555.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,513.35 : 196,637.79 = 85,923.51 : x
  2. Step 2: Convert to fraction form
    142,513.35/196,637.79 = 85,923.51/x
  3. Step 3: Cross multiply
    142,513.35x = 196,637.79 × 85,923.51
  4. Step 4: Simplify right side
    142,513.35x = 16,895,809,115.44
  5. Step 5: Solve for x
    x = 16,895,809,115.44/142,513.35
  6. Step 6: Final answer
    x = 118,555.97

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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.