Home / 155,280.04-214,285.16-87,297.31

Finding the Fourth Proportional to 155,280.04, 214,285.16 and 87,297.31

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Solution

The fourth proportional to 155,280.04, 214,285.16 and 87,297.31 is: 120,469.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,280.04 : 214,285.16 = 87,297.31 : x
  2. Step 2: Convert to fraction form
    155,280.04/214,285.16 = 87,297.31/x
  3. Step 3: Cross multiply
    155,280.04x = 214,285.16 × 87,297.31
  4. Step 4: Simplify right side
    155,280.04x = 18,706,518,564.23
  5. Step 5: Solve for x
    x = 18,706,518,564.23/155,280.04
  6. Step 6: Final answer
    x = 120,469.57

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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.