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Finding the Fourth Proportional to 74,254.40, 111,381.60 and 70,798.40

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Solution

The fourth proportional to 74,254.40, 111,381.60 and 70,798.40 is: 106,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,254.40 : 111,381.60 = 70,798.40 : x
  2. Step 2: Convert to fraction form
    74,254.40/111,381.60 = 70,798.40/x
  3. Step 3: Cross multiply
    74,254.40x = 111,381.60 × 70,798.40
  4. Step 4: Simplify right side
    74,254.40x = 7,885,639,069.44
  5. Step 5: Solve for x
    x = 7,885,639,069.44/74,254.40
  6. Step 6: Final answer
    x = 106,197.60

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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.