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Finding the Fourth Proportional to 144,619.70, 216,832.35 and 65,693.30

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Solution

The fourth proportional to 144,619.70, 216,832.35 and 65,693.30 is: 98,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,619.70 : 216,832.35 = 65,693.30 : x
  2. Step 2: Convert to fraction form
    144,619.70/216,832.35 = 65,693.30/x
  3. Step 3: Cross multiply
    144,619.70x = 216,832.35 × 65,693.30
  4. Step 4: Simplify right side
    144,619.70x = 14,244,432,618.26
  5. Step 5: Solve for x
    x = 14,244,432,618.26/144,619.70
  6. Step 6: Final answer
    x = 98,495.80

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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.