Home / 130,410.14-195,628.47-45,009.88

Finding the Fourth Proportional to 130,410.14, 195,628.47 and 45,009.88

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Solution

The fourth proportional to 130,410.14, 195,628.47 and 45,009.88 is: 67,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,410.14 : 195,628.47 = 45,009.88 : x
  2. Step 2: Convert to fraction form
    130,410.14/195,628.47 = 45,009.88/x
  3. Step 3: Cross multiply
    130,410.14x = 195,628.47 × 45,009.88
  4. Step 4: Simplify right side
    130,410.14x = 8,805,213,846.76
  5. Step 5: Solve for x
    x = 8,805,213,846.76/130,410.14
  6. Step 6: Final answer
    x = 67,519.40

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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.