Home / 190,239.17-285,377.64-70,327.55

Finding the Fourth Proportional to 190,239.17, 285,377.64 and 70,327.55

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Solution

The fourth proportional to 190,239.17, 285,377.64 and 70,327.55 is: 105,498.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,239.17 : 285,377.64 = 70,327.55 : x
  2. Step 2: Convert to fraction form
    190,239.17/285,377.64 = 70,327.55/x
  3. Step 3: Cross multiply
    190,239.17x = 285,377.64 × 70,327.55
  4. Step 4: Simplify right side
    190,239.17x = 20,069,910,245.98
  5. Step 5: Solve for x
    x = 20,069,910,245.98/190,239.17
  6. Step 6: Final answer
    x = 105,498.31

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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.