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Finding the Fourth Proportional to 133,686.25, 184,487.03 and 74,070.25

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Solution

The fourth proportional to 133,686.25, 184,487.03 and 74,070.25 is: 102,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,686.25 : 184,487.03 = 74,070.25 : x
  2. Step 2: Convert to fraction form
    133,686.25/184,487.03 = 74,070.25/x
  3. Step 3: Cross multiply
    133,686.25x = 184,487.03 × 74,070.25
  4. Step 4: Simplify right side
    133,686.25x = 13,665,000,433.86
  5. Step 5: Solve for x
    x = 13,665,000,433.86/133,686.25
  6. Step 6: Final answer
    x = 102,216.95

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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.