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Finding the Fourth Proportional to 124,428.40, 186,642.60 and 119,244.40

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Solution

The fourth proportional to 124,428.40, 186,642.60 and 119,244.40 is: 178,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,428.40 : 186,642.60 = 119,244.40 : x
  2. Step 2: Convert to fraction form
    124,428.40/186,642.60 = 119,244.40/x
  3. Step 3: Cross multiply
    124,428.40x = 186,642.60 × 119,244.40
  4. Step 4: Simplify right side
    124,428.40x = 22,256,084,851.44
  5. Step 5: Solve for x
    x = 22,256,084,851.44/124,428.40
  6. Step 6: Final answer
    x = 178,866.60

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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.