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Finding the Fourth Proportional to 130,859.40, 180,571.60 and 73,487.08

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Solution

The fourth proportional to 130,859.40, 180,571.60 and 73,487.08 is: 101,404.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,859.40 : 180,571.60 = 73,487.08 : x
  2. Step 2: Convert to fraction form
    130,859.40/180,571.60 = 73,487.08/x
  3. Step 3: Cross multiply
    130,859.40x = 180,571.60 × 73,487.08
  4. Step 4: Simplify right side
    130,859.40x = 13,269,679,614.93
  5. Step 5: Solve for x
    x = 13,269,679,614.93/130,859.40
  6. Step 6: Final answer
    x = 101,404.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.