Home / 145,265.56-217,964.08-74,151.50

Finding the Fourth Proportional to 145,265.56, 217,964.08 and 74,151.50

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Solution

The fourth proportional to 145,265.56, 217,964.08 and 74,151.50 is: 111,260.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,265.56 : 217,964.08 = 74,151.50 : x
  2. Step 2: Convert to fraction form
    145,265.56/217,964.08 = 74,151.50/x
  3. Step 3: Cross multiply
    145,265.56x = 217,964.08 × 74,151.50
  4. Step 4: Simplify right side
    145,265.56x = 16,162,362,388.30
  5. Step 5: Solve for x
    x = 16,162,362,388.30/145,265.56
  6. Step 6: Final answer
    x = 111,260.80

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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.