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Finding the Fourth Proportional to 143,464.80, 198,019.44 and 101,042.40

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Solution

The fourth proportional to 143,464.80, 198,019.44 and 101,042.40 is: 139,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,464.80 : 198,019.44 = 101,042.40 : x
  2. Step 2: Convert to fraction form
    143,464.80/198,019.44 = 101,042.40/x
  3. Step 3: Cross multiply
    143,464.80x = 198,019.44 × 101,042.40
  4. Step 4: Simplify right side
    143,464.80x = 20,008,359,464.26
  5. Step 5: Solve for x
    x = 20,008,359,464.26/143,464.80
  6. Step 6: Final answer
    x = 139,465.29

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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.