Home / 345,154.60-517,653.86-134,684.20

Finding the Fourth Proportional to 345,154.60, 517,653.86 and 134,684.20

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Solution

The fourth proportional to 345,154.60, 517,653.86 and 134,684.20 is: 201,995.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,154.60 : 517,653.86 = 134,684.20 : x
  2. Step 2: Convert to fraction form
    345,154.60/517,653.86 = 134,684.20/x
  3. Step 3: Cross multiply
    345,154.60x = 517,653.86 × 134,684.20
  4. Step 4: Simplify right side
    345,154.60x = 69,719,796,011.01
  5. Step 5: Solve for x
    x = 69,719,796,011.01/345,154.60
  6. Step 6: Final answer
    x = 201,995.85

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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.