Home / 106,778.42-147,172.26-97,728.66

Finding the Fourth Proportional to 106,778.42, 147,172.26 and 97,728.66

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Solution

The fourth proportional to 106,778.42, 147,172.26 and 97,728.66 is: 134,699.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,778.42 : 147,172.26 = 97,728.66 : x
  2. Step 2: Convert to fraction form
    106,778.42/147,172.26 = 97,728.66/x
  3. Step 3: Cross multiply
    106,778.42x = 147,172.26 × 97,728.66
  4. Step 4: Simplify right side
    106,778.42x = 14,382,947,758.97
  5. Step 5: Solve for x
    x = 14,382,947,758.97/106,778.42
  6. Step 6: Final answer
    x = 134,699.01

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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.