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Finding the Fourth Proportional to 143,665.54, 215,521.08 and 43,802.86

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Solution

The fourth proportional to 143,665.54, 215,521.08 and 43,802.86 is: 65,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,665.54 : 215,521.08 = 43,802.86 : x
  2. Step 2: Convert to fraction form
    143,665.54/215,521.08 = 43,802.86/x
  3. Step 3: Cross multiply
    143,665.54x = 215,521.08 × 43,802.86
  4. Step 4: Simplify right side
    143,665.54x = 9,440,439,694.29
  5. Step 5: Solve for x
    x = 9,440,439,694.29/143,665.54
  6. Step 6: Final answer
    x = 65,711.23

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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.