Home / 154,236.66-212,849.47-86,261.15

Finding the Fourth Proportional to 154,236.66, 212,849.47 and 86,261.15

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Solution

The fourth proportional to 154,236.66, 212,849.47 and 86,261.15 is: 119,042.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,236.66 : 212,849.47 = 86,261.15 : x
  2. Step 2: Convert to fraction form
    154,236.66/212,849.47 = 86,261.15/x
  3. Step 3: Cross multiply
    154,236.66x = 212,849.47 × 86,261.15
  4. Step 4: Simplify right side
    154,236.66x = 18,360,640,699.04
  5. Step 5: Solve for x
    x = 18,360,640,699.04/154,236.66
  6. Step 6: Final answer
    x = 119,042.00

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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.