Home / 105,704.30-145,794.66-67,490.12

Finding the Fourth Proportional to 105,704.30, 145,794.66 and 67,490.12

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Solution

The fourth proportional to 105,704.30, 145,794.66 and 67,490.12 is: 93,087.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,704.30 : 145,794.66 = 67,490.12 : x
  2. Step 2: Convert to fraction form
    105,704.30/145,794.66 = 67,490.12/x
  3. Step 3: Cross multiply
    105,704.30x = 145,794.66 × 67,490.12
  4. Step 4: Simplify right side
    105,704.30x = 9,839,699,098.76
  5. Step 5: Solve for x
    x = 9,839,699,098.76/105,704.30
  6. Step 6: Final answer
    x = 93,087.03

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1.5x scale

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.