Home / 102,003.58-140,724.64-58,975.20

Finding the Fourth Proportional to 102,003.58, 140,724.64 and 58,975.20

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Solution

The fourth proportional to 102,003.58, 140,724.64 and 58,975.20 is: 81,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,003.58 : 140,724.64 = 58,975.20 : x
  2. Step 2: Convert to fraction form
    102,003.58/140,724.64 = 58,975.20/x
  3. Step 3: Cross multiply
    102,003.58x = 140,724.64 × 58,975.20
  4. Step 4: Simplify right side
    102,003.58x = 8,299,263,862.65
  5. Step 5: Solve for x
    x = 8,299,263,862.65/102,003.58
  6. Step 6: Final answer
    x = 81,362.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.