Home / 180,455.76-270,505.02-85,518.09

Finding the Fourth Proportional to 180,455.76, 270,505.02 and 85,518.09

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Solution

The fourth proportional to 180,455.76, 270,505.02 and 85,518.09 is: 128,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,455.76 : 270,505.02 = 85,518.09 : x
  2. Step 2: Convert to fraction form
    180,455.76/270,505.02 = 85,518.09/x
  3. Step 3: Cross multiply
    180,455.76x = 270,505.02 × 85,518.09
  4. Step 4: Simplify right side
    180,455.76x = 23,133,072,645.81
  5. Step 5: Solve for x
    x = 23,133,072,645.81/180,455.76
  6. Step 6: Final answer
    x = 128,192.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.