Home / 142,976.44-197,307.55-79,314.22

Finding the Fourth Proportional to 142,976.44, 197,307.55 and 79,314.22

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Solution

The fourth proportional to 142,976.44, 197,307.55 and 79,314.22 is: 109,453.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,976.44 : 197,307.55 = 79,314.22 : x
  2. Step 2: Convert to fraction form
    142,976.44/197,307.55 = 79,314.22/x
  3. Step 3: Cross multiply
    142,976.44x = 197,307.55 × 79,314.22
  4. Step 4: Simplify right side
    142,976.44x = 15,649,294,428.36
  5. Step 5: Solve for x
    x = 15,649,294,428.36/142,976.44
  6. Step 6: Final answer
    x = 109,453.66

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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.