Home / 142,928.04-197,195.26-82,490.68

Finding the Fourth Proportional to 142,928.04, 197,195.26 and 82,490.68

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Solution

The fourth proportional to 142,928.04, 197,195.26 and 82,490.68 is: 113,810.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,928.04 : 197,195.26 = 82,490.68 : x
  2. Step 2: Convert to fraction form
    142,928.04/197,195.26 = 82,490.68/x
  3. Step 3: Cross multiply
    142,928.04x = 197,195.26 × 82,490.68
  4. Step 4: Simplify right side
    142,928.04x = 16,266,771,090.18
  5. Step 5: Solve for x
    x = 16,266,771,090.18/142,928.04
  6. Step 6: Final answer
    x = 113,810.92

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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.