Home / 217,125.16-299,632.52-121,632.54

Finding the Fourth Proportional to 217,125.16, 299,632.52 and 121,632.54

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Solution

The fourth proportional to 217,125.16, 299,632.52 and 121,632.54 is: 167,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,125.16 : 299,632.52 = 121,632.54 : x
  2. Step 2: Convert to fraction form
    217,125.16/299,632.52 = 121,632.54/x
  3. Step 3: Cross multiply
    217,125.16x = 299,632.52 × 121,632.54
  4. Step 4: Simplify right side
    217,125.16x = 36,445,062,970.48
  5. Step 5: Solve for x
    x = 36,445,062,970.48/217,125.16
  6. Step 6: Final answer
    x = 167,852.79

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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.