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Finding the Fourth Proportional to 133,683.50, 184,483.23 and 79,970.78

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Solution

The fourth proportional to 133,683.50, 184,483.23 and 79,970.78 is: 110,359.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,683.50 : 184,483.23 = 79,970.78 : x
  2. Step 2: Convert to fraction form
    133,683.50/184,483.23 = 79,970.78/x
  3. Step 3: Cross multiply
    133,683.50x = 184,483.23 × 79,970.78
  4. Step 4: Simplify right side
    133,683.50x = 14,753,267,800.02
  5. Step 5: Solve for x
    x = 14,753,267,800.02/133,683.50
  6. Step 6: Final answer
    x = 110,359.68

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1.5x scale

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.