Home / 189,490.79-261,497.46-104,607.86

Finding the Fourth Proportional to 189,490.79, 261,497.46 and 104,607.86

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Solution

The fourth proportional to 189,490.79, 261,497.46 and 104,607.86 is: 144,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,490.79 : 261,497.46 = 104,607.86 : x
  2. Step 2: Convert to fraction form
    189,490.79/261,497.46 = 104,607.86/x
  3. Step 3: Cross multiply
    189,490.79x = 261,497.46 × 104,607.86
  4. Step 4: Simplify right side
    189,490.79x = 27,354,688,770.83
  5. Step 5: Solve for x
    x = 27,354,688,770.83/189,490.79
  6. Step 6: Final answer
    x = 144,358.93

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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.