Home / 142,917.04-197,180.08-82,479.68

Finding the Fourth Proportional to 142,917.04, 197,180.08 and 82,479.68

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Solution

The fourth proportional to 142,917.04, 197,180.08 and 82,479.68 is: 113,795.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,917.04 : 197,180.08 = 82,479.68 : x
  2. Step 2: Convert to fraction form
    142,917.04/197,180.08 = 82,479.68/x
  3. Step 3: Cross multiply
    142,917.04x = 197,180.08 × 82,479.68
  4. Step 4: Simplify right side
    142,917.04x = 16,263,349,900.77
  5. Step 5: Solve for x
    x = 16,263,349,900.77/142,917.04
  6. Step 6: Final answer
    x = 113,795.74

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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.