Home / 145,479.96-200,773.62-81,823.68

Finding the Fourth Proportional to 145,479.96, 200,773.62 and 81,823.68

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Solution

The fourth proportional to 145,479.96, 200,773.62 and 81,823.68 is: 112,923.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,479.96 : 200,773.62 = 81,823.68 : x
  2. Step 2: Convert to fraction form
    145,479.96/200,773.62 = 81,823.68/x
  3. Step 3: Cross multiply
    145,479.96x = 200,773.62 × 81,823.68
  4. Step 4: Simplify right side
    145,479.96x = 16,428,036,435.32
  5. Step 5: Solve for x
    x = 16,428,036,435.32/145,479.96
  6. Step 6: Final answer
    x = 112,923.02

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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.