Home / 145,931.82-201,383.28-82,269.72

Finding the Fourth Proportional to 145,931.82, 201,383.28 and 82,269.72

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Solution

The fourth proportional to 145,931.82, 201,383.28 and 82,269.72 is: 113,530.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,931.82 : 201,383.28 = 82,269.72 : x
  2. Step 2: Convert to fraction form
    145,931.82/201,383.28 = 82,269.72/x
  3. Step 3: Cross multiply
    145,931.82x = 201,383.28 × 82,269.72
  4. Step 4: Simplify right side
    145,931.82x = 16,567,746,058.28
  5. Step 5: Solve for x
    x = 16,567,746,058.28/145,931.82
  6. Step 6: Final answer
    x = 113,530.73

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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.