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Finding the Fourth Proportional to 124,108.20, 186,210.90 and 45,230.40

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Solution

The fourth proportional to 124,108.20, 186,210.90 and 45,230.40 is: 67,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,108.20 : 186,210.90 = 45,230.40 : x
  2. Step 2: Convert to fraction form
    124,108.20/186,210.90 = 45,230.40/x
  3. Step 3: Cross multiply
    124,108.20x = 186,210.90 × 45,230.40
  4. Step 4: Simplify right side
    124,108.20x = 8,422,393,491.36
  5. Step 5: Solve for x
    x = 8,422,393,491.36/124,108.20
  6. Step 6: Final answer
    x = 67,863.31

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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.