Home / 143,175.79-197,587.11-85,796.20

Finding the Fourth Proportional to 143,175.79, 197,587.11 and 85,796.20

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Solution

The fourth proportional to 143,175.79, 197,587.11 and 85,796.20 is: 118,401.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,175.79 : 197,587.11 = 85,796.20 : x
  2. Step 2: Convert to fraction form
    143,175.79/197,587.11 = 85,796.20/x
  3. Step 3: Cross multiply
    143,175.79x = 197,587.11 × 85,796.20
  4. Step 4: Simplify right side
    143,175.79x = 16,952,223,206.98
  5. Step 5: Solve for x
    x = 16,952,223,206.98/143,175.79
  6. Step 6: Final answer
    x = 118,401.46

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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.