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Finding the Fourth Proportional to 155,807.65, 214,966.76 and 95,315.23

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Solution

The fourth proportional to 155,807.65, 214,966.76 and 95,315.23 is: 131,505.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,807.65 : 214,966.76 = 95,315.23 : x
  2. Step 2: Convert to fraction form
    155,807.65/214,966.76 = 95,315.23/x
  3. Step 3: Cross multiply
    155,807.65x = 214,966.76 × 95,315.23
  4. Step 4: Simplify right side
    155,807.65x = 20,489,606,500.04
  5. Step 5: Solve for x
    x = 20,489,606,500.04/155,807.65
  6. Step 6: Final answer
    x = 131,505.78

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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.