Home / 142,922.40-197,242.80-79,266.12

Finding the Fourth Proportional to 142,922.40, 197,242.80 and 79,266.12

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Solution

The fourth proportional to 142,922.40, 197,242.80 and 79,266.12 is: 109,392.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,922.40 : 197,242.80 = 79,266.12 : x
  2. Step 2: Convert to fraction form
    142,922.40/197,242.80 = 79,266.12/x
  3. Step 3: Cross multiply
    142,922.40x = 197,242.80 × 79,266.12
  4. Step 4: Simplify right side
    142,922.40x = 15,634,671,453.94
  5. Step 5: Solve for x
    x = 15,634,671,453.94/142,922.40
  6. Step 6: Final answer
    x = 109,392.73

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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.