Home / 197,619.60-296,429.40-118,693.20

Finding the Fourth Proportional to 197,619.60, 296,429.40 and 118,693.20

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Solution

The fourth proportional to 197,619.60, 296,429.40 and 118,693.20 is: 178,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,619.60 : 296,429.40 = 118,693.20 : x
  2. Step 2: Convert to fraction form
    197,619.60/296,429.40 = 118,693.20/x
  3. Step 3: Cross multiply
    197,619.60x = 296,429.40 × 118,693.20
  4. Step 4: Simplify right side
    197,619.60x = 35,184,154,060.08
  5. Step 5: Solve for x
    x = 35,184,154,060.08/197,619.60
  6. Step 6: Final answer
    x = 178,039.80

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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.