Home / 155,512.76-214,710.90-119,639.48

Finding the Fourth Proportional to 155,512.76, 214,710.90 and 119,639.48

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Solution

The fourth proportional to 155,512.76, 214,710.90 and 119,639.48 is: 165,181.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,512.76 : 214,710.90 = 119,639.48 : x
  2. Step 2: Convert to fraction form
    155,512.76/214,710.90 = 119,639.48/x
  3. Step 3: Cross multiply
    155,512.76x = 214,710.90 × 119,639.48
  4. Step 4: Simplify right side
    155,512.76x = 25,687,900,426.33
  5. Step 5: Solve for x
    x = 25,687,900,426.33/155,512.76
  6. Step 6: Final answer
    x = 165,181.95

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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.