Home / 143,093.90-197,459.71-79,426.69

Finding the Fourth Proportional to 143,093.90, 197,459.71 and 79,426.69

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Solution

The fourth proportional to 143,093.90, 197,459.71 and 79,426.69 is: 109,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,093.90 : 197,459.71 = 79,426.69 : x
  2. Step 2: Convert to fraction form
    143,093.90/197,459.71 = 79,426.69/x
  3. Step 3: Cross multiply
    143,093.90x = 197,459.71 × 79,426.69
  4. Step 4: Simplify right side
    143,093.90x = 15,683,570,481.44
  5. Step 5: Solve for x
    x = 15,683,570,481.44/143,093.90
  6. Step 6: Final answer
    x = 109,603.35

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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.