Home / 128,488.02-192,771.46-57,470.41

Finding the Fourth Proportional to 128,488.02, 192,771.46 and 57,470.41

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Solution

The fourth proportional to 128,488.02, 192,771.46 and 57,470.41 is: 86,223.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,488.02 : 192,771.46 = 57,470.41 : x
  2. Step 2: Convert to fraction form
    128,488.02/192,771.46 = 57,470.41/x
  3. Step 3: Cross multiply
    128,488.02x = 192,771.46 × 57,470.41
  4. Step 4: Simplify right side
    128,488.02x = 11,078,654,842.50
  5. Step 5: Solve for x
    x = 11,078,654,842.50/128,488.02
  6. Step 6: Final answer
    x = 86,223.25

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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.