Home / 223,585.03-308,551.32-121,612.72

Finding the Fourth Proportional to 223,585.03, 308,551.32 and 121,612.72

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Solution

The fourth proportional to 223,585.03, 308,551.32 and 121,612.72 is: 167,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,585.03 : 308,551.32 = 121,612.72 : x
  2. Step 2: Convert to fraction form
    223,585.03/308,551.32 = 121,612.72/x
  3. Step 3: Cross multiply
    223,585.03x = 308,551.32 × 121,612.72
  4. Step 4: Simplify right side
    223,585.03x = 37,523,765,284.79
  5. Step 5: Solve for x
    x = 37,523,765,284.79/223,585.03
  6. Step 6: Final answer
    x = 167,827.72

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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.