Home / 142,190.40-213,160.62-58,021.44

Finding the Fourth Proportional to 142,190.40, 213,160.62 and 58,021.44

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Solution

The fourth proportional to 142,190.40, 213,160.62 and 58,021.44 is: 86,981.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,190.40 : 213,160.62 = 58,021.44 : x
  2. Step 2: Convert to fraction form
    142,190.40/213,160.62 = 58,021.44/x
  3. Step 3: Cross multiply
    142,190.40x = 213,160.62 × 58,021.44
  4. Step 4: Simplify right side
    142,190.40x = 12,367,886,123.69
  5. Step 5: Solve for x
    x = 12,367,886,123.69/142,190.40
  6. Step 6: Final answer
    x = 86,981.16

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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.