Home / 155,629.34-214,766.16-87,646.50

Finding the Fourth Proportional to 155,629.34, 214,766.16 and 87,646.50

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Solution

The fourth proportional to 155,629.34, 214,766.16 and 87,646.50 is: 120,950.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,629.34 : 214,766.16 = 87,646.50 : x
  2. Step 2: Convert to fraction form
    155,629.34/214,766.16 = 87,646.50/x
  3. Step 3: Cross multiply
    155,629.34x = 214,766.16 × 87,646.50
  4. Step 4: Simplify right side
    155,629.34x = 18,823,502,242.44
  5. Step 5: Solve for x
    x = 18,823,502,242.44/155,629.34
  6. Step 6: Final answer
    x = 120,950.86

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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.