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Finding the Fourth Proportional to 143,979.30, 216,002.94 and 65,093.40

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Solution

The fourth proportional to 143,979.30, 216,002.94 and 65,093.40 is: 97,655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,979.30 : 216,002.94 = 65,093.40 : x
  2. Step 2: Convert to fraction form
    143,979.30/216,002.94 = 65,093.40/x
  3. Step 3: Cross multiply
    143,979.30x = 216,002.94 × 65,093.40
  4. Step 4: Simplify right side
    143,979.30x = 14,060,365,774.60
  5. Step 5: Solve for x
    x = 14,060,365,774.60/143,979.30
  6. Step 6: Final answer
    x = 97,655.47

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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.