Home / 155,029.41-213,953.00-87,050.90

Finding the Fourth Proportional to 155,029.41, 213,953.00 and 87,050.90

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Solution

The fourth proportional to 155,029.41, 213,953.00 and 87,050.90 is: 120,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,029.41 : 213,953.00 = 87,050.90 : x
  2. Step 2: Convert to fraction form
    155,029.41/213,953.00 = 87,050.90/x
  3. Step 3: Cross multiply
    155,029.41x = 213,953.00 × 87,050.90
  4. Step 4: Simplify right side
    155,029.41x = 18,624,801,307.33
  5. Step 5: Solve for x
    x = 18,624,801,307.33/155,029.41
  6. Step 6: Final answer
    x = 120,137.21

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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.