Home / 190,530.50-285,590.10-83,819.48

Finding the Fourth Proportional to 190,530.50, 285,590.10 and 83,819.48

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Solution

The fourth proportional to 190,530.50, 285,590.10 and 83,819.48 is: 125,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,530.50 : 285,590.10 = 83,819.48 : x
  2. Step 2: Convert to fraction form
    190,530.50/285,590.10 = 83,819.48/x
  3. Step 3: Cross multiply
    190,530.50x = 285,590.10 × 83,819.48
  4. Step 4: Simplify right side
    190,530.50x = 23,938,012,247.20
  5. Step 5: Solve for x
    x = 23,938,012,247.20/190,530.50
  6. Step 6: Final answer
    x = 125,638.74

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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.