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Finding the Fourth Proportional to 153,668.56, 230,530.74 and 74,782.84

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Solution

The fourth proportional to 153,668.56, 230,530.74 and 74,782.84 is: 112,187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,668.56 : 230,530.74 = 74,782.84 : x
  2. Step 2: Convert to fraction form
    153,668.56/230,530.74 = 74,782.84/x
  3. Step 3: Cross multiply
    153,668.56x = 230,530.74 × 74,782.84
  4. Step 4: Simplify right side
    153,668.56x = 17,239,743,444.50
  5. Step 5: Solve for x
    x = 17,239,743,444.50/153,668.56
  6. Step 6: Final answer
    x = 112,187.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.