Home / 131,091.03-180,906.89-74,502.81

Finding the Fourth Proportional to 131,091.03, 180,906.89 and 74,502.81

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Solution

The fourth proportional to 131,091.03, 180,906.89 and 74,502.81 is: 102,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,091.03 : 180,906.89 = 74,502.81 : x
  2. Step 2: Convert to fraction form
    131,091.03/180,906.89 = 74,502.81/x
  3. Step 3: Cross multiply
    131,091.03x = 180,906.89 × 74,502.81
  4. Step 4: Simplify right side
    131,091.03x = 13,478,071,280.85
  5. Step 5: Solve for x
    x = 13,478,071,280.85/131,091.03
  6. Step 6: Final answer
    x = 102,814.60

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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.