Home / 124,621.40-186,810.60-71,258.60

Finding the Fourth Proportional to 124,621.40, 186,810.60 and 71,258.60

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Solution

The fourth proportional to 124,621.40, 186,810.60 and 71,258.60 is: 106,818.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,621.40 : 186,810.60 = 71,258.60 : x
  2. Step 2: Convert to fraction form
    124,621.40/186,810.60 = 71,258.60/x
  3. Step 3: Cross multiply
    124,621.40x = 186,810.60 × 71,258.60
  4. Step 4: Simplify right side
    124,621.40x = 13,311,861,821.16
  5. Step 5: Solve for x
    x = 13,311,861,821.16/124,621.40
  6. Step 6: Final answer
    x = 106,818.43

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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.