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Finding the Fourth Proportional to 107,438.70, 161,157.87 and 28,552.93

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Solution

The fourth proportional to 107,438.70, 161,157.87 and 28,552.93 is: 42,829.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,438.70 : 161,157.87 = 28,552.93 : x
  2. Step 2: Convert to fraction form
    107,438.70/161,157.87 = 28,552.93/x
  3. Step 3: Cross multiply
    107,438.70x = 161,157.87 × 28,552.93
  4. Step 4: Simplify right side
    107,438.70x = 4,601,529,381.06
  5. Step 5: Solve for x
    x = 4,601,529,381.06/107,438.70
  6. Step 6: Final answer
    x = 42,829.35

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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.