Home / 130,009.20-194,722.20-106,681.20

Finding the Fourth Proportional to 130,009.20, 194,722.20 and 106,681.20

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Solution

The fourth proportional to 130,009.20, 194,722.20 and 106,681.20 is: 159,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,009.20 : 194,722.20 = 106,681.20 : x
  2. Step 2: Convert to fraction form
    130,009.20/194,722.20 = 106,681.20/x
  3. Step 3: Cross multiply
    130,009.20x = 194,722.20 × 106,681.20
  4. Step 4: Simplify right side
    130,009.20x = 20,773,197,962.64
  5. Step 5: Solve for x
    x = 20,773,197,962.64/130,009.20
  6. Step 6: Final answer
    x = 159,782.52

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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.