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Finding the Fourth Proportional to 103,477.92, 155,276.73 and 43,501.65

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Solution

The fourth proportional to 103,477.92, 155,276.73 and 43,501.65 is: 65,277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,477.92 : 155,276.73 = 43,501.65 : x
  2. Step 2: Convert to fraction form
    103,477.92/155,276.73 = 43,501.65/x
  3. Step 3: Cross multiply
    103,477.92x = 155,276.73 × 43,501.65
  4. Step 4: Simplify right side
    103,477.92x = 6,754,793,961.60
  5. Step 5: Solve for x
    x = 6,754,793,961.60/103,477.92
  6. Step 6: Final answer
    x = 65,277.64

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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.