Home / 142,690.27-196,914.23-79,029.13

Finding the Fourth Proportional to 142,690.27, 196,914.23 and 79,029.13

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Solution

The fourth proportional to 142,690.27, 196,914.23 and 79,029.13 is: 109,061.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,690.27 : 196,914.23 = 79,029.13 : x
  2. Step 2: Convert to fraction form
    142,690.27/196,914.23 = 79,029.13/x
  3. Step 3: Cross multiply
    142,690.27x = 196,914.23 × 79,029.13
  4. Step 4: Simplify right side
    142,690.27x = 15,561,959,886.37
  5. Step 5: Solve for x
    x = 15,561,959,886.37/142,690.27
  6. Step 6: Final answer
    x = 109,061.11

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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.