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Finding the Fourth Proportional to 143,670.70, 198,267.51 and 80,010.10

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Solution

The fourth proportional to 143,670.70, 198,267.51 and 80,010.10 is: 110,415.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,670.70 : 198,267.51 = 80,010.10 : x
  2. Step 2: Convert to fraction form
    143,670.70/198,267.51 = 80,010.10/x
  3. Step 3: Cross multiply
    143,670.70x = 198,267.51 × 80,010.10
  4. Step 4: Simplify right side
    143,670.70x = 15,863,403,301.85
  5. Step 5: Solve for x
    x = 15,863,403,301.85/143,670.70
  6. Step 6: Final answer
    x = 110,415.02

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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.