Home / 142,205.54-196,242.48-77,674.82

Finding the Fourth Proportional to 142,205.54, 196,242.48 and 77,674.82

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Solution

The fourth proportional to 142,205.54, 196,242.48 and 77,674.82 is: 107,190.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,205.54 : 196,242.48 = 77,674.82 : x
  2. Step 2: Convert to fraction form
    142,205.54/196,242.48 = 77,674.82/x
  3. Step 3: Cross multiply
    142,205.54x = 196,242.48 × 77,674.82
  4. Step 4: Simplify right side
    142,205.54x = 15,243,099,310.35
  5. Step 5: Solve for x
    x = 15,243,099,310.35/142,205.54
  6. Step 6: Final answer
    x = 107,190.62

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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.