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Finding the Fourth Proportional to 107,841.60, 161,762.40 and 105,537.60

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Solution

The fourth proportional to 107,841.60, 161,762.40 and 105,537.60 is: 158,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,841.60 : 161,762.40 = 105,537.60 : x
  2. Step 2: Convert to fraction form
    107,841.60/161,762.40 = 105,537.60/x
  3. Step 3: Cross multiply
    107,841.60x = 161,762.40 × 105,537.60
  4. Step 4: Simplify right side
    107,841.60x = 17,072,015,466.24
  5. Step 5: Solve for x
    x = 17,072,015,466.24/107,841.60
  6. Step 6: Final answer
    x = 158,306.40

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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.