Home / 142,906.06-197,209.65-79,254.64

Finding the Fourth Proportional to 142,906.06, 197,209.65 and 79,254.64

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Solution

The fourth proportional to 142,906.06, 197,209.65 and 79,254.64 is: 109,371.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,906.06 : 197,209.65 = 79,254.64 : x
  2. Step 2: Convert to fraction form
    142,906.06/197,209.65 = 79,254.64/x
  3. Step 3: Cross multiply
    142,906.06x = 197,209.65 × 79,254.64
  4. Step 4: Simplify right side
    142,906.06x = 15,629,779,815.28
  5. Step 5: Solve for x
    x = 15,629,779,815.28/142,906.06
  6. Step 6: Final answer
    x = 109,371.01

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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.