Home / 145,976.78-201,441.84-82,320.50

Finding the Fourth Proportional to 145,976.78, 201,441.84 and 82,320.50

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Solution

The fourth proportional to 145,976.78, 201,441.84 and 82,320.50 is: 113,598.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,976.78 : 201,441.84 = 82,320.50 : x
  2. Step 2: Convert to fraction form
    145,976.78/201,441.84 = 82,320.50/x
  3. Step 3: Cross multiply
    145,976.78x = 201,441.84 × 82,320.50
  4. Step 4: Simplify right side
    145,976.78x = 16,582,793,184.62
  5. Step 5: Solve for x
    x = 16,582,793,184.62/145,976.78
  6. Step 6: Final answer
    x = 113,598.84

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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.