Home / 216,869.86-299,277.31-120,064.43

Finding the Fourth Proportional to 216,869.86, 299,277.31 and 120,064.43

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Solution

The fourth proportional to 216,869.86, 299,277.31 and 120,064.43 is: 165,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,869.86 : 299,277.31 = 120,064.43 : x
  2. Step 2: Convert to fraction form
    216,869.86/299,277.31 = 120,064.43/x
  3. Step 3: Cross multiply
    216,869.86x = 299,277.31 × 120,064.43
  4. Step 4: Simplify right side
    216,869.86x = 35,932,558,289.12
  5. Step 5: Solve for x
    x = 35,932,558,289.12/216,869.86
  6. Step 6: Final answer
    x = 165,687.20

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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.