Home / 142,891.02-197,186.67-79,228.26

Finding the Fourth Proportional to 142,891.02, 197,186.67 and 79,228.26

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Solution

The fourth proportional to 142,891.02, 197,186.67 and 79,228.26 is: 109,333.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,891.02 : 197,186.67 = 79,228.26 : x
  2. Step 2: Convert to fraction form
    142,891.02/197,186.67 = 79,228.26/x
  3. Step 3: Cross multiply
    142,891.02x = 197,186.67 × 79,228.26
  4. Step 4: Simplify right side
    142,891.02x = 15,622,756,759.29
  5. Step 5: Solve for x
    x = 15,622,756,759.29/142,891.02
  6. Step 6: Final answer
    x = 109,333.37

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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.