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Finding the Fourth Proportional to 133,478.80, 184,200.60 and 75,347.77

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Solution

The fourth proportional to 133,478.80, 184,200.60 and 75,347.77 is: 103,979.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,478.80 : 184,200.60 = 75,347.77 : x
  2. Step 2: Convert to fraction form
    133,478.80/184,200.60 = 75,347.77/x
  3. Step 3: Cross multiply
    133,478.80x = 184,200.60 × 75,347.77
  4. Step 4: Simplify right side
    133,478.80x = 13,879,104,264.71
  5. Step 5: Solve for x
    x = 13,879,104,264.71/133,478.80
  6. Step 6: Final answer
    x = 103,979.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.