Home / 154,271.81-212,914.82-86,292.56

Finding the Fourth Proportional to 154,271.81, 212,914.82 and 86,292.56

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Solution

The fourth proportional to 154,271.81, 212,914.82 and 86,292.56 is: 119,094.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,271.81 : 212,914.82 = 86,292.56 : x
  2. Step 2: Convert to fraction form
    154,271.81/212,914.82 = 86,292.56/x
  3. Step 3: Cross multiply
    154,271.81x = 212,914.82 × 86,292.56
  4. Step 4: Simplify right side
    154,271.81x = 18,372,964,448.28
  5. Step 5: Solve for x
    x = 18,372,964,448.28/154,271.81
  6. Step 6: Final answer
    x = 119,094.76

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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.