Home / 345,467.16-518,096.12-120,785.72

Finding the Fourth Proportional to 345,467.16, 518,096.12 and 120,785.72

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Solution

The fourth proportional to 345,467.16, 518,096.12 and 120,785.72 is: 181,141.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,467.16 : 518,096.12 = 120,785.72 : x
  2. Step 2: Convert to fraction form
    345,467.16/518,096.12 = 120,785.72/x
  3. Step 3: Cross multiply
    345,467.16x = 518,096.12 × 120,785.72
  4. Step 4: Simplify right side
    345,467.16x = 62,578,609,689.00
  5. Step 5: Solve for x
    x = 62,578,609,689.00/345,467.16
  6. Step 6: Final answer
    x = 181,141.99

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1.5x scale

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.