Home / 309,784.19-464,405.63-120,113.87

Finding the Fourth Proportional to 309,784.19, 464,405.63 and 120,113.87

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Solution

The fourth proportional to 309,784.19, 464,405.63 and 120,113.87 is: 180,065.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,784.19 : 464,405.63 = 120,113.87 : x
  2. Step 2: Convert to fraction form
    309,784.19/464,405.63 = 120,113.87/x
  3. Step 3: Cross multiply
    309,784.19x = 464,405.63 × 120,113.87
  4. Step 4: Simplify right side
    309,784.19x = 55,781,554,546.49
  5. Step 5: Solve for x
    x = 55,781,554,546.49/309,784.19
  6. Step 6: Final answer
    x = 180,065.86

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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.