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Finding the Fourth Proportional to 143,210.39, 214,846.56 and 54,465.57

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Solution

The fourth proportional to 143,210.39, 214,846.56 and 54,465.57 is: 81,710.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,210.39 : 214,846.56 = 54,465.57 : x
  2. Step 2: Convert to fraction form
    143,210.39/214,846.56 = 54,465.57/x
  3. Step 3: Cross multiply
    143,210.39x = 214,846.56 × 54,465.57
  4. Step 4: Simplify right side
    143,210.39x = 11,701,740,352.94
  5. Step 5: Solve for x
    x = 11,701,740,352.94/143,210.39
  6. Step 6: Final answer
    x = 81,710.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.