Home / 134,195.40-185,196.78-80,482.68

Finding the Fourth Proportional to 134,195.40, 185,196.78 and 80,482.68

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Solution

The fourth proportional to 134,195.40, 185,196.78 and 80,482.68 is: 111,070.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,195.40 : 185,196.78 = 80,482.68 : x
  2. Step 2: Convert to fraction form
    134,195.40/185,196.78 = 80,482.68/x
  3. Step 3: Cross multiply
    134,195.40x = 185,196.78 × 80,482.68
  4. Step 4: Simplify right side
    134,195.40x = 14,905,133,181.77
  5. Step 5: Solve for x
    x = 14,905,133,181.77/134,195.40
  6. Step 6: Final answer
    x = 111,070.37

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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.