Home / 130,204.19-194,990.85-90,110.81

Finding the Fourth Proportional to 130,204.19, 194,990.85 and 90,110.81

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Solution

The fourth proportional to 130,204.19, 194,990.85 and 90,110.81 is: 134,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,204.19 : 194,990.85 = 90,110.81 : x
  2. Step 2: Convert to fraction form
    130,204.19/194,990.85 = 90,110.81/x
  3. Step 3: Cross multiply
    130,204.19x = 194,990.85 × 90,110.81
  4. Step 4: Simplify right side
    130,204.19x = 17,570,782,461.13
  5. Step 5: Solve for x
    x = 17,570,782,461.13/130,204.19
  6. Step 6: Final answer
    x = 134,947.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.