Home / 189,331.02-261,263.88-104,449.50

Finding the Fourth Proportional to 189,331.02, 261,263.88 and 104,449.50

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Solution

The fourth proportional to 189,331.02, 261,263.88 and 104,449.50 is: 144,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,331.02 : 261,263.88 = 104,449.50 : x
  2. Step 2: Convert to fraction form
    189,331.02/261,263.88 = 104,449.50/x
  3. Step 3: Cross multiply
    189,331.02x = 261,263.88 × 104,449.50
  4. Step 4: Simplify right side
    189,331.02x = 27,288,881,634.06
  5. Step 5: Solve for x
    x = 27,288,881,634.06/189,331.02
  6. Step 6: Final answer
    x = 144,133.18

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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.