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Finding the Fourth Proportional to 115,862.80, 162,441.20 and 115,862.80

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Solution

The fourth proportional to 115,862.80, 162,441.20 and 115,862.80 is: 162,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,862.80 : 162,441.20 = 115,862.80 : x
  2. Step 2: Convert to fraction form
    115,862.80/162,441.20 = 115,862.80/x
  3. Step 3: Cross multiply
    115,862.80x = 162,441.20 × 115,862.80
  4. Step 4: Simplify right side
    115,862.80x = 18,820,892,267.36
  5. Step 5: Solve for x
    x = 18,820,892,267.36/115,862.80
  6. Step 6: Final answer
    x = 162,441.20

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.