Home / 142,108.09-213,083.76-57,846.63

Finding the Fourth Proportional to 142,108.09, 213,083.76 and 57,846.63

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Solution

The fourth proportional to 142,108.09, 213,083.76 and 57,846.63 is: 86,738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,108.09 : 213,083.76 = 57,846.63 : x
  2. Step 2: Convert to fraction form
    142,108.09/213,083.76 = 57,846.63/x
  3. Step 3: Cross multiply
    142,108.09x = 213,083.76 × 57,846.63
  4. Step 4: Simplify right side
    142,108.09x = 12,326,177,423.73
  5. Step 5: Solve for x
    x = 12,326,177,423.73/142,108.09
  6. Step 6: Final answer
    x = 86,738.04

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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.