Home / 216,564.55-298,859.74-121,071.24

Finding the Fourth Proportional to 216,564.55, 298,859.74 and 121,071.24

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Solution

The fourth proportional to 216,564.55, 298,859.74 and 121,071.24 is: 167,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,564.55 : 298,859.74 = 121,071.24 : x
  2. Step 2: Convert to fraction form
    216,564.55/298,859.74 = 121,071.24/x
  3. Step 3: Cross multiply
    216,564.55x = 298,859.74 × 121,071.24
  4. Step 4: Simplify right side
    216,564.55x = 36,183,319,005.20
  5. Step 5: Solve for x
    x = 36,183,319,005.20/216,564.55
  6. Step 6: Final answer
    x = 167,078.68

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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.