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Finding the Fourth Proportional to 123,272.60, 184,800.90 and 83,701.40

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Solution

The fourth proportional to 123,272.60, 184,800.90 and 83,701.40 is: 125,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,272.60 : 184,800.90 = 83,701.40 : x
  2. Step 2: Convert to fraction form
    123,272.60/184,800.90 = 83,701.40/x
  3. Step 3: Cross multiply
    123,272.60x = 184,800.90 × 83,701.40
  4. Step 4: Simplify right side
    123,272.60x = 15,468,094,051.26
  5. Step 5: Solve for x
    x = 15,468,094,051.26/123,272.60
  6. Step 6: Final answer
    x = 125,478.77

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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.