Home / 130,546-180,153.66-73,961.20

Finding the Fourth Proportional to 130,546, 180,153.66 and 73,961.20

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Solution

The fourth proportional to 130,546, 180,153.66 and 73,961.20 is: 102,066.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,546 : 180,153.66 = 73,961.20 : x
  2. Step 2: Convert to fraction form
    130,546/180,153.66 = 73,961.20/x
  3. Step 3: Cross multiply
    130,546x = 180,153.66 × 73,961.20
  4. Step 4: Simplify right side
    130,546x = 13,324,380,877.99
  5. Step 5: Solve for x
    x = 13,324,380,877.99/130,546
  6. Step 6: Final answer
    x = 102,066.56

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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.