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Finding the Fourth Proportional to 148,030.88, 204,290.04 and 87,636.16

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Solution

The fourth proportional to 148,030.88, 204,290.04 and 87,636.16 is: 120,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,030.88 : 204,290.04 = 87,636.16 : x
  2. Step 2: Convert to fraction form
    148,030.88/204,290.04 = 87,636.16/x
  3. Step 3: Cross multiply
    148,030.88x = 204,290.04 × 87,636.16
  4. Step 4: Simplify right side
    148,030.88x = 17,903,194,631.85
  5. Step 5: Solve for x
    x = 17,903,194,631.85/148,030.88
  6. Step 6: Final answer
    x = 120,942.30

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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.