Home / 148,338.88-204,706.08-81,270.72

Finding the Fourth Proportional to 148,338.88, 204,706.08 and 81,270.72

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Solution

The fourth proportional to 148,338.88, 204,706.08 and 81,270.72 is: 112,152.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,338.88 : 204,706.08 = 81,270.72 : x
  2. Step 2: Convert to fraction form
    148,338.88/204,706.08 = 81,270.72/x
  3. Step 3: Cross multiply
    148,338.88x = 204,706.08 × 81,270.72
  4. Step 4: Simplify right side
    148,338.88x = 16,636,610,509.98
  5. Step 5: Solve for x
    x = 16,636,610,509.98/148,338.88
  6. Step 6: Final answer
    x = 112,152.73

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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.