Home / 103,831.59-155,638.04-53,858.64

Finding the Fourth Proportional to 103,831.59, 155,638.04 and 53,858.64

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Solution

The fourth proportional to 103,831.59, 155,638.04 and 53,858.64 is: 80,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,831.59 : 155,638.04 = 53,858.64 : x
  2. Step 2: Convert to fraction form
    103,831.59/155,638.04 = 53,858.64/x
  3. Step 3: Cross multiply
    103,831.59x = 155,638.04 × 53,858.64
  4. Step 4: Simplify right side
    103,831.59x = 8,382,453,166.67
  5. Step 5: Solve for x
    x = 8,382,453,166.67/103,831.59
  6. Step 6: Final answer
    x = 80,731.24

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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.