Home / 133,678.83-184,353.45-90,720.66

Finding the Fourth Proportional to 133,678.83, 184,353.45 and 90,720.66

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Solution

The fourth proportional to 133,678.83, 184,353.45 and 90,720.66 is: 125,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,678.83 : 184,353.45 = 90,720.66 : x
  2. Step 2: Convert to fraction form
    133,678.83/184,353.45 = 90,720.66/x
  3. Step 3: Cross multiply
    133,678.83x = 184,353.45 × 90,720.66
  4. Step 4: Simplify right side
    133,678.83x = 16,724,666,657.28
  5. Step 5: Solve for x
    x = 16,724,666,657.28/133,678.83
  6. Step 6: Final answer
    x = 125,110.81

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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.