Home / 145,057.64-200,184.62-84,618.68

Finding the Fourth Proportional to 145,057.64, 200,184.62 and 84,618.68

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Solution

The fourth proportional to 145,057.64, 200,184.62 and 84,618.68 is: 116,776.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,057.64 : 200,184.62 = 84,618.68 : x
  2. Step 2: Convert to fraction form
    145,057.64/200,184.62 = 84,618.68/x
  3. Step 3: Cross multiply
    145,057.64x = 200,184.62 × 84,618.68
  4. Step 4: Simplify right side
    145,057.64x = 16,939,356,876.69
  5. Step 5: Solve for x
    x = 16,939,356,876.69/145,057.64
  6. Step 6: Final answer
    x = 116,776.73

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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.