Home / 155,351.43-214,382.93-87,368.38

Finding the Fourth Proportional to 155,351.43, 214,382.93 and 87,368.38

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Solution

The fourth proportional to 155,351.43, 214,382.93 and 87,368.38 is: 120,567.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,351.43 : 214,382.93 = 87,368.38 : x
  2. Step 2: Convert to fraction form
    155,351.43/214,382.93 = 87,368.38/x
  3. Step 3: Cross multiply
    155,351.43x = 214,382.93 × 87,368.38
  4. Step 4: Simplify right side
    155,351.43x = 18,730,289,293.75
  5. Step 5: Solve for x
    x = 18,730,289,293.75/155,351.43
  6. Step 6: Final answer
    x = 120,567.22

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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.