Home / 128,036.20-192,054.30-124,580.20

Finding the Fourth Proportional to 128,036.20, 192,054.30 and 124,580.20

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Solution

The fourth proportional to 128,036.20, 192,054.30 and 124,580.20 is: 186,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,036.20 : 192,054.30 = 124,580.20 : x
  2. Step 2: Convert to fraction form
    128,036.20/192,054.30 = 124,580.20/x
  3. Step 3: Cross multiply
    128,036.20x = 192,054.30 × 124,580.20
  4. Step 4: Simplify right side
    128,036.20x = 23,926,163,104.86
  5. Step 5: Solve for x
    x = 23,926,163,104.86/128,036.20
  6. Step 6: Final answer
    x = 186,870.30

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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.