Home / 216,143.43-298,271.73-120,648.07

Finding the Fourth Proportional to 216,143.43, 298,271.73 and 120,648.07

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Solution

The fourth proportional to 216,143.43, 298,271.73 and 120,648.07 is: 166,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,143.43 : 298,271.73 = 120,648.07 : x
  2. Step 2: Convert to fraction form
    216,143.43/298,271.73 = 120,648.07/x
  3. Step 3: Cross multiply
    216,143.43x = 298,271.73 × 120,648.07
  4. Step 4: Simplify right side
    216,143.43x = 35,985,908,560.06
  5. Step 5: Solve for x
    x = 35,985,908,560.06/216,143.43
  6. Step 6: Final answer
    x = 166,490.87

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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.