Home / 103,439.51-155,159.24-33,318.83

Finding the Fourth Proportional to 103,439.51, 155,159.24 and 33,318.83

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Solution

The fourth proportional to 103,439.51, 155,159.24 and 33,318.83 is: 49,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,439.51 : 155,159.24 = 33,318.83 : x
  2. Step 2: Convert to fraction form
    103,439.51/155,159.24 = 33,318.83/x
  3. Step 3: Cross multiply
    103,439.51x = 155,159.24 × 33,318.83
  4. Step 4: Simplify right side
    103,439.51x = 5,169,723,398.10
  5. Step 5: Solve for x
    x = 5,169,723,398.10/103,439.51
  6. Step 6: Final answer
    x = 49,978.23

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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.