Home / 345,750.07-518,329.29-132,670.90

Finding the Fourth Proportional to 345,750.07, 518,329.29 and 132,670.90

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Solution

The fourth proportional to 345,750.07, 518,329.29 and 132,670.90 is: 198,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,750.07 : 518,329.29 = 132,670.90 : x
  2. Step 2: Convert to fraction form
    345,750.07/518,329.29 = 132,670.90/x
  3. Step 3: Cross multiply
    345,750.07x = 518,329.29 × 132,670.90
  4. Step 4: Simplify right side
    345,750.07x = 68,767,210,809.01
  5. Step 5: Solve for x
    x = 68,767,210,809.01/345,750.07
  6. Step 6: Final answer
    x = 198,892.83

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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.