Home / 145,536.18-200,839.59-81,873.96

Finding the Fourth Proportional to 145,536.18, 200,839.59 and 81,873.96

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Solution

The fourth proportional to 145,536.18, 200,839.59 and 81,873.96 is: 112,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536.18 : 200,839.59 = 81,873.96 : x
  2. Step 2: Convert to fraction form
    145,536.18/200,839.59 = 81,873.96/x
  3. Step 3: Cross multiply
    145,536.18x = 200,839.59 × 81,873.96
  4. Step 4: Simplify right side
    145,536.18x = 16,443,532,558.08
  5. Step 5: Solve for x
    x = 16,443,532,558.08/145,536.18
  6. Step 6: Final answer
    x = 112,985.87

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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.