Home / 155,282.97-214,289.21-87,300.25

Finding the Fourth Proportional to 155,282.97, 214,289.21 and 87,300.25

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Solution

The fourth proportional to 155,282.97, 214,289.21 and 87,300.25 is: 120,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,282.97 : 214,289.21 = 87,300.25 : x
  2. Step 2: Convert to fraction form
    155,282.97/214,289.21 = 87,300.25/x
  3. Step 3: Cross multiply
    155,282.97x = 214,289.21 × 87,300.25
  4. Step 4: Simplify right side
    155,282.97x = 18,707,501,605.30
  5. Step 5: Solve for x
    x = 18,707,501,605.30/155,282.97
  6. Step 6: Final answer
    x = 120,473.62

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1.5x scale

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.