Home / 145,056.42-200,177.33-81,394.07

Finding the Fourth Proportional to 145,056.42, 200,177.33 and 81,394.07

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Solution

The fourth proportional to 145,056.42, 200,177.33 and 81,394.07 is: 112,323.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,056.42 : 200,177.33 = 81,394.07 : x
  2. Step 2: Convert to fraction form
    145,056.42/200,177.33 = 81,394.07/x
  3. Step 3: Cross multiply
    145,056.42x = 200,177.33 × 81,394.07
  4. Step 4: Simplify right side
    145,056.42x = 16,293,246,202.58
  5. Step 5: Solve for x
    x = 16,293,246,202.58/145,056.42
  6. Step 6: Final answer
    x = 112,323.51

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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.