Home / 142,914.80-197,209.50-79,252.40

Finding the Fourth Proportional to 142,914.80, 197,209.50 and 79,252.40

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Solution

The fourth proportional to 142,914.80, 197,209.50 and 79,252.40 is: 109,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,914.80 : 197,209.50 = 79,252.40 : x
  2. Step 2: Convert to fraction form
    142,914.80/197,209.50 = 79,252.40/x
  3. Step 3: Cross multiply
    142,914.80x = 197,209.50 × 79,252.40
  4. Step 4: Simplify right side
    142,914.80x = 15,629,326,177.80
  5. Step 5: Solve for x
    x = 15,629,326,177.80/142,914.80
  6. Step 6: Final answer
    x = 109,361.15

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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.