Home / 147,831.74-221,744.47-47,991.79

Finding the Fourth Proportional to 147,831.74, 221,744.47 and 47,991.79

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Solution

The fourth proportional to 147,831.74, 221,744.47 and 47,991.79 is: 71,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,831.74 : 221,744.47 = 47,991.79 : x
  2. Step 2: Convert to fraction form
    147,831.74/221,744.47 = 47,991.79/x
  3. Step 3: Cross multiply
    147,831.74x = 221,744.47 × 47,991.79
  4. Step 4: Simplify right side
    147,831.74x = 10,641,914,037.90
  5. Step 5: Solve for x
    x = 10,641,914,037.90/147,831.74
  6. Step 6: Final answer
    x = 71,986.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.