Home / 154,056.48-212,576.78-86,064.95

Finding the Fourth Proportional to 154,056.48, 212,576.78 and 86,064.95

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Solution

The fourth proportional to 154,056.48, 212,576.78 and 86,064.95 is: 118,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,056.48 : 212,576.78 = 86,064.95 : x
  2. Step 2: Convert to fraction form
    154,056.48/212,576.78 = 86,064.95/x
  3. Step 3: Cross multiply
    154,056.48x = 212,576.78 × 86,064.95
  4. Step 4: Simplify right side
    154,056.48x = 18,295,408,448.65
  5. Step 5: Solve for x
    x = 18,295,408,448.65/154,056.48
  6. Step 6: Final answer
    x = 118,757.80

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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.