Home / 142,923.56-197,229.54-79,267.28

Finding the Fourth Proportional to 142,923.56, 197,229.54 and 79,267.28

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Solution

The fourth proportional to 142,923.56, 197,229.54 and 79,267.28 is: 109,386.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,923.56 : 197,229.54 = 79,267.28 : x
  2. Step 2: Convert to fraction form
    142,923.56/197,229.54 = 79,267.28/x
  3. Step 3: Cross multiply
    142,923.56x = 197,229.54 × 79,267.28
  4. Step 4: Simplify right side
    142,923.56x = 15,633,848,482.56
  5. Step 5: Solve for x
    x = 15,633,848,482.56/142,923.56
  6. Step 6: Final answer
    x = 109,386.09

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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.