Home / 157,850.18-217,830.50-86,228.36

Finding the Fourth Proportional to 157,850.18, 217,830.50 and 86,228.36

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Solution

The fourth proportional to 157,850.18, 217,830.50 and 86,228.36 is: 118,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,850.18 : 217,830.50 = 86,228.36 : x
  2. Step 2: Convert to fraction form
    157,850.18/217,830.50 = 86,228.36/x
  3. Step 3: Cross multiply
    157,850.18x = 217,830.50 × 86,228.36
  4. Step 4: Simplify right side
    157,850.18x = 18,783,165,252.69
  5. Step 5: Solve for x
    x = 18,783,165,252.69/157,850.18
  6. Step 6: Final answer
    x = 118,993.63

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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.