Home / 142,593.36-196,778.84-78,931.16

Finding the Fourth Proportional to 142,593.36, 196,778.84 and 78,931.16

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Solution

The fourth proportional to 142,593.36, 196,778.84 and 78,931.16 is: 108,925.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,593.36 : 196,778.84 = 78,931.16 : x
  2. Step 2: Convert to fraction form
    142,593.36/196,778.84 = 78,931.16/x
  3. Step 3: Cross multiply
    142,593.36x = 196,778.84 × 78,931.16
  4. Step 4: Simplify right side
    142,593.36x = 15,531,981,908.01
  5. Step 5: Solve for x
    x = 15,531,981,908.01/142,593.36
  6. Step 6: Final answer
    x = 108,925.00

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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.