Home / 142,889.77-197,184.94-79,227.01

Finding the Fourth Proportional to 142,889.77, 197,184.94 and 79,227.01

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Solution

The fourth proportional to 142,889.77, 197,184.94 and 79,227.01 is: 109,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,889.77 : 197,184.94 = 79,227.01 : x
  2. Step 2: Convert to fraction form
    142,889.77/197,184.94 = 79,227.01/x
  3. Step 3: Cross multiply
    142,889.77x = 197,184.94 × 79,227.01
  4. Step 4: Simplify right side
    142,889.77x = 15,622,373,213.23
  5. Step 5: Solve for x
    x = 15,622,373,213.23/142,889.77
  6. Step 6: Final answer
    x = 109,331.64

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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.