Home / 190,648.90-262,856.10-139,572.96

Finding the Fourth Proportional to 190,648.90, 262,856.10 and 139,572.96

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Solution

The fourth proportional to 190,648.90, 262,856.10 and 139,572.96 is: 192,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,648.90 : 262,856.10 = 139,572.96 : x
  2. Step 2: Convert to fraction form
    190,648.90/262,856.10 = 139,572.96/x
  3. Step 3: Cross multiply
    190,648.90x = 262,856.10 × 139,572.96
  4. Step 4: Simplify right side
    190,648.90x = 36,687,602,616.78
  5. Step 5: Solve for x
    x = 36,687,602,616.78/190,648.90
  6. Step 6: Final answer
    x = 192,435.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.