Home / 189,384.64-261,445.42-117,787.74

Finding the Fourth Proportional to 189,384.64, 261,445.42 and 117,787.74

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Solution

The fourth proportional to 189,384.64, 261,445.42 and 117,787.74 is: 162,605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,384.64 : 261,445.42 = 117,787.74 : x
  2. Step 2: Convert to fraction form
    189,384.64/261,445.42 = 117,787.74/x
  3. Step 3: Cross multiply
    189,384.64x = 261,445.42 × 117,787.74
  4. Step 4: Simplify right side
    189,384.64x = 30,795,065,155.15
  5. Step 5: Solve for x
    x = 30,795,065,155.15/189,384.64
  6. Step 6: Final answer
    x = 162,605.93

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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.