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Finding the Fourth Proportional to 124,352.40, 186,541.20 and 40,090.80

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Solution

The fourth proportional to 124,352.40, 186,541.20 and 40,090.80 is: 60,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,352.40 : 186,541.20 = 40,090.80 : x
  2. Step 2: Convert to fraction form
    124,352.40/186,541.20 = 40,090.80/x
  3. Step 3: Cross multiply
    124,352.40x = 186,541.20 × 40,090.80
  4. Step 4: Simplify right side
    124,352.40x = 7,478,585,940.96
  5. Step 5: Solve for x
    x = 7,478,585,940.96/124,352.40
  6. Step 6: Final answer
    x = 60,140.26

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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.