Home / 143,702.49-198,313.01-80,041.35

Finding the Fourth Proportional to 143,702.49, 198,313.01 and 80,041.35

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Solution

The fourth proportional to 143,702.49, 198,313.01 and 80,041.35 is: 110,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,702.49 : 198,313.01 = 80,041.35 : x
  2. Step 2: Convert to fraction form
    143,702.49/198,313.01 = 80,041.35/x
  3. Step 3: Cross multiply
    143,702.49x = 198,313.01 × 80,041.35
  4. Step 4: Simplify right side
    143,702.49x = 15,873,239,651.19
  5. Step 5: Solve for x
    x = 15,873,239,651.19/143,702.49
  6. Step 6: Final answer
    x = 110,459.05

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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.