Home / 131,091.80-180,906.08-74,503.17

Finding the Fourth Proportional to 131,091.80, 180,906.08 and 74,503.17

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Solution

The fourth proportional to 131,091.80, 180,906.08 and 74,503.17 is: 102,814.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,091.80 : 180,906.08 = 74,503.17 : x
  2. Step 2: Convert to fraction form
    131,091.80/180,906.08 = 74,503.17/x
  3. Step 3: Cross multiply
    131,091.80x = 180,906.08 × 74,503.17
  4. Step 4: Simplify right side
    131,091.80x = 13,478,076,059.76
  5. Step 5: Solve for x
    x = 13,478,076,059.76/131,091.80
  6. Step 6: Final answer
    x = 102,814.03

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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.