Home / 189,970.52-262,159.56-105,093.32

Finding the Fourth Proportional to 189,970.52, 262,159.56 and 105,093.32

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Solution

The fourth proportional to 189,970.52, 262,159.56 and 105,093.32 is: 145,028.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,970.52 : 262,159.56 = 105,093.32 : x
  2. Step 2: Convert to fraction form
    189,970.52/262,159.56 = 105,093.32/x
  3. Step 3: Cross multiply
    189,970.52x = 262,159.56 × 105,093.32
  4. Step 4: Simplify right side
    189,970.52x = 27,551,218,530.14
  5. Step 5: Solve for x
    x = 27,551,218,530.14/189,970.52
  6. Step 6: Final answer
    x = 145,028.92

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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.