Home / 124,286.40-186,429.60-120,830.40

Finding the Fourth Proportional to 124,286.40, 186,429.60 and 120,830.40

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Solution

The fourth proportional to 124,286.40, 186,429.60 and 120,830.40 is: 181,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,286.40 : 186,429.60 = 120,830.40 : x
  2. Step 2: Convert to fraction form
    124,286.40/186,429.60 = 120,830.40/x
  3. Step 3: Cross multiply
    124,286.40x = 186,429.60 × 120,830.40
  4. Step 4: Simplify right side
    124,286.40x = 22,526,363,139.84
  5. Step 5: Solve for x
    x = 22,526,363,139.84/124,286.40
  6. Step 6: Final answer
    x = 181,245.60

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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.