Home / 189,142.02-261,015.75-104,260.50

Finding the Fourth Proportional to 189,142.02, 261,015.75 and 104,260.50

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Solution

The fourth proportional to 189,142.02, 261,015.75 and 104,260.50 is: 143,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,142.02 : 261,015.75 = 104,260.50 : x
  2. Step 2: Convert to fraction form
    189,142.02/261,015.75 = 104,260.50/x
  3. Step 3: Cross multiply
    189,142.02x = 261,015.75 × 104,260.50
  4. Step 4: Simplify right side
    189,142.02x = 27,213,632,602.88
  5. Step 5: Solve for x
    x = 27,213,632,602.88/189,142.02
  6. Step 6: Final answer
    x = 143,879.36

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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.