Home / 128,538.02-192,804.96-35,043.77

Finding the Fourth Proportional to 128,538.02, 192,804.96 and 35,043.77

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Solution

The fourth proportional to 128,538.02, 192,804.96 and 35,043.77 is: 52,565.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,538.02 : 192,804.96 = 35,043.77 : x
  2. Step 2: Convert to fraction form
    128,538.02/192,804.96 = 35,043.77/x
  3. Step 3: Cross multiply
    128,538.02x = 192,804.96 × 35,043.77
  4. Step 4: Simplify right side
    128,538.02x = 6,756,611,709.07
  5. Step 5: Solve for x
    x = 6,756,611,709.07/128,538.02
  6. Step 6: Final answer
    x = 52,565.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.