Home / 149,746.04-206,647.97-81,762.80

Finding the Fourth Proportional to 149,746.04, 206,647.97 and 81,762.80

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Solution

The fourth proportional to 149,746.04, 206,647.97 and 81,762.80 is: 112,831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,746.04 : 206,647.97 = 81,762.80 : x
  2. Step 2: Convert to fraction form
    149,746.04/206,647.97 = 81,762.80/x
  3. Step 3: Cross multiply
    149,746.04x = 206,647.97 × 81,762.80
  4. Step 4: Simplify right side
    149,746.04x = 16,896,116,641.52
  5. Step 5: Solve for x
    x = 16,896,116,641.52/149,746.04
  6. Step 6: Final answer
    x = 112,831.81

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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.