Home / 131,100.20-180,923.67-73,742.19

Finding the Fourth Proportional to 131,100.20, 180,923.67 and 73,742.19

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Solution

The fourth proportional to 131,100.20, 180,923.67 and 73,742.19 is: 101,767.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,100.20 : 180,923.67 = 73,742.19 : x
  2. Step 2: Convert to fraction form
    131,100.20/180,923.67 = 73,742.19/x
  3. Step 3: Cross multiply
    131,100.20x = 180,923.67 × 73,742.19
  4. Step 4: Simplify right side
    131,100.20x = 13,341,706,970.17
  5. Step 5: Solve for x
    x = 13,341,706,970.17/131,100.20
  6. Step 6: Final answer
    x = 101,767.25

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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.