Home / 149,745.45-206,647.16-81,762.23

Finding the Fourth Proportional to 149,745.45, 206,647.16 and 81,762.23

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Solution

The fourth proportional to 149,745.45, 206,647.16 and 81,762.23 is: 112,831.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,745.45 : 206,647.16 = 81,762.23 : x
  2. Step 2: Convert to fraction form
    149,745.45/206,647.16 = 81,762.23/x
  3. Step 3: Cross multiply
    149,745.45x = 206,647.16 × 81,762.23
  4. Step 4: Simplify right side
    149,745.45x = 16,895,931,182.72
  5. Step 5: Solve for x
    x = 16,895,931,182.72/149,745.45
  6. Step 6: Final answer
    x = 112,831.02

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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.