Home / 154,669.93-213,462.21-86,705.26

Finding the Fourth Proportional to 154,669.93, 213,462.21 and 86,705.26

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Solution

The fourth proportional to 154,669.93, 213,462.21 and 86,705.26 is: 119,663.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,669.93 : 213,462.21 = 86,705.26 : x
  2. Step 2: Convert to fraction form
    154,669.93/213,462.21 = 86,705.26/x
  3. Step 3: Cross multiply
    154,669.93x = 213,462.21 × 86,705.26
  4. Step 4: Simplify right side
    154,669.93x = 18,508,296,418.22
  5. Step 5: Solve for x
    x = 18,508,296,418.22/154,669.93
  6. Step 6: Final answer
    x = 119,663.18

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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.