Home / 142,931.94-197,214.53-82,489.74

Finding the Fourth Proportional to 142,931.94, 197,214.53 and 82,489.74

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Solution

The fourth proportional to 142,931.94, 197,214.53 and 82,489.74 is: 113,817.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,931.94 : 197,214.53 = 82,489.74 : x
  2. Step 2: Convert to fraction form
    142,931.94/197,214.53 = 82,489.74/x
  3. Step 3: Cross multiply
    142,931.94x = 197,214.53 × 82,489.74
  4. Step 4: Simplify right side
    142,931.94x = 16,268,175,303.92
  5. Step 5: Solve for x
    x = 16,268,175,303.92/142,931.94
  6. Step 6: Final answer
    x = 113,817.63

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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.