Home / 130,629.87-196,387.74-104,312.07

Finding the Fourth Proportional to 130,629.87, 196,387.74 and 104,312.07

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Solution

The fourth proportional to 130,629.87, 196,387.74 and 104,312.07 is: 156,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,629.87 : 196,387.74 = 104,312.07 : x
  2. Step 2: Convert to fraction form
    130,629.87/196,387.74 = 104,312.07/x
  3. Step 3: Cross multiply
    130,629.87x = 196,387.74 × 104,312.07
  4. Step 4: Simplify right side
    130,629.87x = 20,485,611,682.02
  5. Step 5: Solve for x
    x = 20,485,611,682.02/130,629.87
  6. Step 6: Final answer
    x = 156,821.80

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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.