Home / 154,226.62-212,831.27-86,242.81

Finding the Fourth Proportional to 154,226.62, 212,831.27 and 86,242.81

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Solution

The fourth proportional to 154,226.62, 212,831.27 and 86,242.81 is: 119,014.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,226.62 : 212,831.27 = 86,242.81 : x
  2. Step 2: Convert to fraction form
    154,226.62/212,831.27 = 86,242.81/x
  3. Step 3: Cross multiply
    154,226.62x = 212,831.27 × 86,242.81
  4. Step 4: Simplify right side
    154,226.62x = 18,355,166,782.40
  5. Step 5: Solve for x
    x = 18,355,166,782.40/154,226.62
  6. Step 6: Final answer
    x = 119,014.26

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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.