Home / 142,022.03-196,011.63-91,092.20

Finding the Fourth Proportional to 142,022.03, 196,011.63 and 91,092.20

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Solution

The fourth proportional to 142,022.03, 196,011.63 and 91,092.20 is: 125,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,022.03 : 196,011.63 = 91,092.20 : x
  2. Step 2: Convert to fraction form
    142,022.03/196,011.63 = 91,092.20/x
  3. Step 3: Cross multiply
    142,022.03x = 196,011.63 × 91,092.20
  4. Step 4: Simplify right side
    142,022.03x = 17,855,129,622.23
  5. Step 5: Solve for x
    x = 17,855,129,622.23/142,022.03
  6. Step 6: Final answer
    x = 125,720.85

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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.