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Finding the Fourth Proportional to 105,090.40, 157,635.60 and 105,090.40

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Solution

The fourth proportional to 105,090.40, 157,635.60 and 105,090.40 is: 157,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,090.40 : 157,635.60 = 105,090.40 : x
  2. Step 2: Convert to fraction form
    105,090.40/157,635.60 = 105,090.40/x
  3. Step 3: Cross multiply
    105,090.40x = 157,635.60 × 105,090.40
  4. Step 4: Simplify right side
    105,090.40x = 16,565,988,258.24
  5. Step 5: Solve for x
    x = 16,565,988,258.24/105,090.40
  6. Step 6: Final answer
    x = 157,635.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.