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Finding the Fourth Proportional to 143,333.64, 214,897.95 and 67,389.57

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Solution

The fourth proportional to 143,333.64, 214,897.95 and 67,389.57 is: 101,036.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,333.64 : 214,897.95 = 67,389.57 : x
  2. Step 2: Convert to fraction form
    143,333.64/214,897.95 = 67,389.57/x
  3. Step 3: Cross multiply
    143,333.64x = 214,897.95 × 67,389.57
  4. Step 4: Simplify right side
    143,333.64x = 14,481,880,444.38
  5. Step 5: Solve for x
    x = 14,481,880,444.38/143,333.64
  6. Step 6: Final answer
    x = 101,036.16

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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.