Home / 142,258.06-213,384.66-42,418.54

Finding the Fourth Proportional to 142,258.06, 213,384.66 and 42,418.54

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Solution

The fourth proportional to 142,258.06, 213,384.66 and 42,418.54 is: 63,627.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,258.06 : 213,384.66 = 42,418.54 : x
  2. Step 2: Convert to fraction form
    142,258.06/213,384.66 = 42,418.54/x
  3. Step 3: Cross multiply
    142,258.06x = 213,384.66 × 42,418.54
  4. Step 4: Simplify right side
    142,258.06x = 9,051,465,735.60
  5. Step 5: Solve for x
    x = 9,051,465,735.60/142,258.06
  6. Step 6: Final answer
    x = 63,627.09

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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.