Home / 107,439.70-161,159.37-28,553.93

Finding the Fourth Proportional to 107,439.70, 161,159.37 and 28,553.93

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Solution

The fourth proportional to 107,439.70, 161,159.37 and 28,553.93 is: 42,830.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,439.70 : 161,159.37 = 28,553.93 : x
  2. Step 2: Convert to fraction form
    107,439.70/161,159.37 = 28,553.93/x
  3. Step 3: Cross multiply
    107,439.70x = 161,159.37 × 28,553.93
  4. Step 4: Simplify right side
    107,439.70x = 4,601,733,369.82
  5. Step 5: Solve for x
    x = 4,601,733,369.82/107,439.70
  6. Step 6: Final answer
    x = 42,830.85

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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.