Home / 190,440.69-285,698.38-70,498.57

Finding the Fourth Proportional to 190,440.69, 285,698.38 and 70,498.57

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Solution

The fourth proportional to 190,440.69, 285,698.38 and 70,498.57 is: 105,761.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,440.69 : 285,698.38 = 70,498.57 : x
  2. Step 2: Convert to fraction form
    190,440.69/285,698.38 = 70,498.57/x
  3. Step 3: Cross multiply
    190,440.69x = 285,698.38 × 70,498.57
  4. Step 4: Simplify right side
    190,440.69x = 20,141,326,169.95
  5. Step 5: Solve for x
    x = 20,141,326,169.95/190,440.69
  6. Step 6: Final answer
    x = 105,761.67

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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.