Home / 154,258.96-212,867.62-86,282.16

Finding the Fourth Proportional to 154,258.96, 212,867.62 and 86,282.16

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Solution

The fourth proportional to 154,258.96, 212,867.62 and 86,282.16 is: 119,063.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,258.96 : 212,867.62 = 86,282.16 : x
  2. Step 2: Convert to fraction form
    154,258.96/212,867.62 = 86,282.16/x
  3. Step 3: Cross multiply
    154,258.96x = 212,867.62 × 86,282.16
  4. Step 4: Simplify right side
    154,258.96x = 18,366,678,047.66
  5. Step 5: Solve for x
    x = 18,366,678,047.66/154,258.96
  6. Step 6: Final answer
    x = 119,063.93

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Why These Related Problems?

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