Home / 142,544.18-196,706.12-78,884.66

Finding the Fourth Proportional to 142,544.18, 196,706.12 and 78,884.66

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Solution

The fourth proportional to 142,544.18, 196,706.12 and 78,884.66 is: 108,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,544.18 : 196,706.12 = 78,884.66 : x
  2. Step 2: Convert to fraction form
    142,544.18/196,706.12 = 78,884.66/x
  3. Step 3: Cross multiply
    142,544.18x = 196,706.12 × 78,884.66
  4. Step 4: Simplify right side
    142,544.18x = 15,517,095,396.12
  5. Step 5: Solve for x
    x = 15,517,095,396.12/142,544.18
  6. Step 6: Final answer
    x = 108,858.15

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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.