Home / 216,637.92-298,960.34-121,144.84

Finding the Fourth Proportional to 216,637.92, 298,960.34 and 121,144.84

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Solution

The fourth proportional to 216,637.92, 298,960.34 and 121,144.84 is: 167,179.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,637.92 : 298,960.34 = 121,144.84 : x
  2. Step 2: Convert to fraction form
    216,637.92/298,960.34 = 121,144.84/x
  3. Step 3: Cross multiply
    216,637.92x = 298,960.34 × 121,144.84
  4. Step 4: Simplify right side
    216,637.92x = 36,217,502,555.65
  5. Step 5: Solve for x
    x = 36,217,502,555.65/216,637.92
  6. Step 6: Final answer
    x = 167,179.89

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1.5x scale

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.