Home / 152,000.12-228,065.76-81,865.40

Finding the Fourth Proportional to 152,000.12, 228,065.76 and 81,865.40

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Solution

The fourth proportional to 152,000.12, 228,065.76 and 81,865.40 is: 122,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,000.12 : 228,065.76 = 81,865.40 : x
  2. Step 2: Convert to fraction form
    152,000.12/228,065.76 = 81,865.40/x
  3. Step 3: Cross multiply
    152,000.12x = 228,065.76 × 81,865.40
  4. Step 4: Simplify right side
    152,000.12x = 18,670,694,668.70
  5. Step 5: Solve for x
    x = 18,670,694,668.70/152,000.12
  6. Step 6: Final answer
    x = 122,833.42

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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.