Home / 255,427.81-383,137.58-87,065.35

Finding the Fourth Proportional to 255,427.81, 383,137.58 and 87,065.35

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Solution

The fourth proportional to 255,427.81, 383,137.58 and 87,065.35 is: 130,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,427.81 : 383,137.58 = 87,065.35 : x
  2. Step 2: Convert to fraction form
    255,427.81/383,137.58 = 87,065.35/x
  3. Step 3: Cross multiply
    255,427.81x = 383,137.58 × 87,065.35
  4. Step 4: Simplify right side
    255,427.81x = 33,358,006,760.67
  5. Step 5: Solve for x
    x = 33,358,006,760.67/255,427.81
  6. Step 6: Final answer
    x = 130,596.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.