Home / 190,787.84-286,181.52-72,458.96

Finding the Fourth Proportional to 190,787.84, 286,181.52 and 72,458.96

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Solution

The fourth proportional to 190,787.84, 286,181.52 and 72,458.96 is: 108,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,787.84 : 286,181.52 = 72,458.96 : x
  2. Step 2: Convert to fraction form
    190,787.84/286,181.52 = 72,458.96/x
  3. Step 3: Cross multiply
    190,787.84x = 286,181.52 × 72,458.96
  4. Step 4: Simplify right side
    190,787.84x = 20,736,415,310.42
  5. Step 5: Solve for x
    x = 20,736,415,310.42/190,787.84
  6. Step 6: Final answer
    x = 108,688.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.