Home / 155,597.76-214,272.95-135,170.51

Finding the Fourth Proportional to 155,597.76, 214,272.95 and 135,170.51

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Solution

The fourth proportional to 155,597.76, 214,272.95 and 135,170.51 is: 186,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,597.76 : 214,272.95 = 135,170.51 : x
  2. Step 2: Convert to fraction form
    155,597.76/214,272.95 = 135,170.51/x
  3. Step 3: Cross multiply
    155,597.76x = 214,272.95 × 135,170.51
  4. Step 4: Simplify right side
    155,597.76x = 28,963,382,183.49
  5. Step 5: Solve for x
    x = 28,963,382,183.49/155,597.76
  6. Step 6: Final answer
    x = 186,142.67

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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.