Home / 154,513.54-213,211.06-86,521.06

Finding the Fourth Proportional to 154,513.54, 213,211.06 and 86,521.06

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Solution

The fourth proportional to 154,513.54, 213,211.06 and 86,521.06 is: 119,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,513.54 : 213,211.06 = 86,521.06 : x
  2. Step 2: Convert to fraction form
    154,513.54/213,211.06 = 86,521.06/x
  3. Step 3: Cross multiply
    154,513.54x = 213,211.06 × 86,521.06
  4. Step 4: Simplify right side
    154,513.54x = 18,447,246,914.92
  5. Step 5: Solve for x
    x = 18,447,246,914.92/154,513.54
  6. Step 6: Final answer
    x = 119,389.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.