Home / 130,218.40-194,809.20-112,880.80

Finding the Fourth Proportional to 130,218.40, 194,809.20 and 112,880.80

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Solution

The fourth proportional to 130,218.40, 194,809.20 and 112,880.80 is: 168,871.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,218.40 : 194,809.20 = 112,880.80 : x
  2. Step 2: Convert to fraction form
    130,218.40/194,809.20 = 112,880.80/x
  3. Step 3: Cross multiply
    130,218.40x = 194,809.20 × 112,880.80
  4. Step 4: Simplify right side
    130,218.40x = 21,990,218,343.36
  5. Step 5: Solve for x
    x = 21,990,218,343.36/130,218.40
  6. Step 6: Final answer
    x = 168,871.82

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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.