Home / 142,799.64-197,059.20-79,136.04

Finding the Fourth Proportional to 142,799.64, 197,059.20 and 79,136.04

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Solution

The fourth proportional to 142,799.64, 197,059.20 and 79,136.04 is: 109,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,799.64 : 197,059.20 = 79,136.04 : x
  2. Step 2: Convert to fraction form
    142,799.64/197,059.20 = 79,136.04/x
  3. Step 3: Cross multiply
    142,799.64x = 197,059.20 × 79,136.04
  4. Step 4: Simplify right side
    142,799.64x = 15,594,484,733.57
  5. Step 5: Solve for x
    x = 15,594,484,733.57/142,799.64
  6. Step 6: Final answer
    x = 109,205.35

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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.