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Finding the Fourth Proportional to 153,756, 230,661.87 and 69,555.81

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Solution

The fourth proportional to 153,756, 230,661.87 and 69,555.81 is: 104,346.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,756 : 230,661.87 = 69,555.81 : x
  2. Step 2: Convert to fraction form
    153,756/230,661.87 = 69,555.81/x
  3. Step 3: Cross multiply
    153,756x = 230,661.87 × 69,555.81
  4. Step 4: Simplify right side
    153,756x = 16,043,873,203.96
  5. Step 5: Solve for x
    x = 16,043,873,203.96/153,756
  6. Step 6: Final answer
    x = 104,346.32

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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.