Home / 140,831.20-211,246.80-57,784.80

Finding the Fourth Proportional to 140,831.20, 211,246.80 and 57,784.80

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Solution

The fourth proportional to 140,831.20, 211,246.80 and 57,784.80 is: 86,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,831.20 : 211,246.80 = 57,784.80 : x
  2. Step 2: Convert to fraction form
    140,831.20/211,246.80 = 57,784.80/x
  3. Step 3: Cross multiply
    140,831.20x = 211,246.80 × 57,784.80
  4. Step 4: Simplify right side
    140,831.20x = 12,206,854,088.64
  5. Step 5: Solve for x
    x = 12,206,854,088.64/140,831.20
  6. Step 6: Final answer
    x = 86,677.20

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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.