Home / 206,831.20-285,406.80-116,166.40

Finding the Fourth Proportional to 206,831.20, 285,406.80 and 116,166.40

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Solution

The fourth proportional to 206,831.20, 285,406.80 and 116,166.40 is: 160,298.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,831.20 : 285,406.80 = 116,166.40 : x
  2. Step 2: Convert to fraction form
    206,831.20/285,406.80 = 116,166.40/x
  3. Step 3: Cross multiply
    206,831.20x = 285,406.80 × 116,166.40
  4. Step 4: Simplify right side
    206,831.20x = 33,154,680,491.52
  5. Step 5: Solve for x
    x = 33,154,680,491.52/206,831.20
  6. Step 6: Final answer
    x = 160,298.26

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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.