Home / 124,276.20-186,414.30-71,642.40

Finding the Fourth Proportional to 124,276.20, 186,414.30 and 71,642.40

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Solution

The fourth proportional to 124,276.20, 186,414.30 and 71,642.40 is: 107,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,276.20 : 186,414.30 = 71,642.40 : x
  2. Step 2: Convert to fraction form
    124,276.20/186,414.30 = 71,642.40/x
  3. Step 3: Cross multiply
    124,276.20x = 186,414.30 × 71,642.40
  4. Step 4: Simplify right side
    124,276.20x = 13,355,167,846.32
  5. Step 5: Solve for x
    x = 13,355,167,846.32/124,276.20
  6. Step 6: Final answer
    x = 107,463.60

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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.