Home / 156,571.09-216,067.40-84,950.94

Finding the Fourth Proportional to 156,571.09, 216,067.40 and 84,950.94

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Solution

The fourth proportional to 156,571.09, 216,067.40 and 84,950.94 is: 117,231.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,571.09 : 216,067.40 = 84,950.94 : x
  2. Step 2: Convert to fraction form
    156,571.09/216,067.40 = 84,950.94/x
  3. Step 3: Cross multiply
    156,571.09x = 216,067.40 × 84,950.94
  4. Step 4: Simplify right side
    156,571.09x = 18,355,128,525.89
  5. Step 5: Solve for x
    x = 18,355,128,525.89/156,571.09
  6. Step 6: Final answer
    x = 117,231.91

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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.