Home / 103,289.72-142,463.41-67,000.10

Finding the Fourth Proportional to 103,289.72, 142,463.41 and 67,000.10

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Solution

The fourth proportional to 103,289.72, 142,463.41 and 67,000.10 is: 92,410.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,289.72 : 142,463.41 = 67,000.10 : x
  2. Step 2: Convert to fraction form
    103,289.72/142,463.41 = 67,000.10/x
  3. Step 3: Cross multiply
    103,289.72x = 142,463.41 × 67,000.10
  4. Step 4: Simplify right side
    103,289.72x = 9,545,061,836.52
  5. Step 5: Solve for x
    x = 9,545,061,836.52/103,289.72
  6. Step 6: Final answer
    x = 92,410.57

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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.