Home / 216,554.88-298,852.32-121,065.60

Finding the Fourth Proportional to 216,554.88, 298,852.32 and 121,065.60

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Solution

The fourth proportional to 216,554.88, 298,852.32 and 121,065.60 is: 167,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,554.88 : 298,852.32 = 121,065.60 : x
  2. Step 2: Convert to fraction form
    216,554.88/298,852.32 = 121,065.60/x
  3. Step 3: Cross multiply
    216,554.88x = 298,852.32 × 121,065.60
  4. Step 4: Simplify right side
    216,554.88x = 36,180,735,432.19
  5. Step 5: Solve for x
    x = 36,180,735,432.19/216,554.88
  6. Step 6: Final answer
    x = 167,074.21

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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.