Home / 149,746.08-206,648.03-81,762.84

Finding the Fourth Proportional to 149,746.08, 206,648.03 and 81,762.84

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Solution

The fourth proportional to 149,746.08, 206,648.03 and 81,762.84 is: 112,831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,746.08 : 206,648.03 = 81,762.84 : x
  2. Step 2: Convert to fraction form
    149,746.08/206,648.03 = 81,762.84/x
  3. Step 3: Cross multiply
    149,746.08x = 206,648.03 × 81,762.84
  4. Step 4: Simplify right side
    149,746.08x = 16,896,129,813.21
  5. Step 5: Solve for x
    x = 16,896,129,813.21/149,746.08
  6. Step 6: Final answer
    x = 112,831.87

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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.