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Finding the Fourth Proportional to 124,410.40, 186,615.60 and 68,228.80

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Solution

The fourth proportional to 124,410.40, 186,615.60 and 68,228.80 is: 102,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,410.40 : 186,615.60 = 68,228.80 : x
  2. Step 2: Convert to fraction form
    124,410.40/186,615.60 = 68,228.80/x
  3. Step 3: Cross multiply
    124,410.40x = 186,615.60 × 68,228.80
  4. Step 4: Simplify right side
    124,410.40x = 12,732,558,449.28
  5. Step 5: Solve for x
    x = 12,732,558,449.28/124,410.40
  6. Step 6: Final answer
    x = 102,343.20

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1.5x scale

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.