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Finding the Fourth Proportional to 144,495.60, 216,714.60 and 69,615.60

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Solution

The fourth proportional to 144,495.60, 216,714.60 and 69,615.60 is: 104,409.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,495.60 : 216,714.60 = 69,615.60 : x
  2. Step 2: Convert to fraction form
    144,495.60/216,714.60 = 69,615.60/x
  3. Step 3: Cross multiply
    144,495.60x = 216,714.60 × 69,615.60
  4. Step 4: Simplify right side
    144,495.60x = 15,086,716,907.76
  5. Step 5: Solve for x
    x = 15,086,716,907.76/144,495.60
  6. Step 6: Final answer
    x = 104,409.52

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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.