Home / 145,516.03-200,810.14-81,853.89

Finding the Fourth Proportional to 145,516.03, 200,810.14 and 81,853.89

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Solution

The fourth proportional to 145,516.03, 200,810.14 and 81,853.89 is: 112,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,516.03 : 200,810.14 = 81,853.89 : x
  2. Step 2: Convert to fraction form
    145,516.03/200,810.14 = 81,853.89/x
  3. Step 3: Cross multiply
    145,516.03x = 200,810.14 × 81,853.89
  4. Step 4: Simplify right side
    145,516.03x = 16,437,091,110.44
  5. Step 5: Solve for x
    x = 16,437,091,110.44/145,516.03
  6. Step 6: Final answer
    x = 112,957.25

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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.