Home / 154,825.83-213,705-101,119.19

Finding the Fourth Proportional to 154,825.83, 213,705 and 101,119.19

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Solution

The fourth proportional to 154,825.83, 213,705 and 101,119.19 is: 139,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,825.83 : 213,705 = 101,119.19 : x
  2. Step 2: Convert to fraction form
    154,825.83/213,705 = 101,119.19/x
  3. Step 3: Cross multiply
    154,825.83x = 213,705 × 101,119.19
  4. Step 4: Simplify right side
    154,825.83x = 21,609,675,430.43
  5. Step 5: Solve for x
    x = 21,609,675,430.43/154,825.83
  6. Step 6: Final answer
    x = 139,574.10

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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.