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Finding the Fourth Proportional to 168,547.77, 252,751.32 and 68,639.94

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Solution

The fourth proportional to 168,547.77, 252,751.32 and 68,639.94 is: 102,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,547.77 : 252,751.32 = 68,639.94 : x
  2. Step 2: Convert to fraction form
    168,547.77/252,751.32 = 68,639.94/x
  3. Step 3: Cross multiply
    168,547.77x = 252,751.32 × 68,639.94
  4. Step 4: Simplify right side
    168,547.77x = 17,348,835,439.72
  5. Step 5: Solve for x
    x = 17,348,835,439.72/168,547.77
  6. Step 6: Final answer
    x = 102,931.27

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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.