Home / 154,042.73-212,557.92-86,051.30

Finding the Fourth Proportional to 154,042.73, 212,557.92 and 86,051.30

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Solution

The fourth proportional to 154,042.73, 212,557.92 and 86,051.30 is: 118,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,042.73 : 212,557.92 = 86,051.30 : x
  2. Step 2: Convert to fraction form
    154,042.73/212,557.92 = 86,051.30/x
  3. Step 3: Cross multiply
    154,042.73x = 212,557.92 × 86,051.30
  4. Step 4: Simplify right side
    154,042.73x = 18,290,884,278.51
  5. Step 5: Solve for x
    x = 18,290,884,278.51/154,042.73
  6. Step 6: Final answer
    x = 118,739.03

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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.