Home / 145,266.70-217,965.76-74,152.60

Finding the Fourth Proportional to 145,266.70, 217,965.76 and 74,152.60

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Solution

The fourth proportional to 145,266.70, 217,965.76 and 74,152.60 is: 111,262.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,266.70 : 217,965.76 = 74,152.60 : x
  2. Step 2: Convert to fraction form
    145,266.70/217,965.76 = 74,152.60/x
  3. Step 3: Cross multiply
    145,266.70x = 217,965.76 × 74,152.60
  4. Step 4: Simplify right side
    145,266.70x = 16,162,727,814.98
  5. Step 5: Solve for x
    x = 16,162,727,814.98/145,266.70
  6. Step 6: Final answer
    x = 111,262.44

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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.