Home / 109,905.01-151,677.06-61,511.78

Finding the Fourth Proportional to 109,905.01, 151,677.06 and 61,511.78

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Solution

The fourth proportional to 109,905.01, 151,677.06 and 61,511.78 is: 84,890.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,905.01 : 151,677.06 = 61,511.78 : x
  2. Step 2: Convert to fraction form
    109,905.01/151,677.06 = 61,511.78/x
  3. Step 3: Cross multiply
    109,905.01x = 151,677.06 × 61,511.78
  4. Step 4: Simplify right side
    109,905.01x = 9,329,925,945.77
  5. Step 5: Solve for x
    x = 9,329,925,945.77/109,905.01
  6. Step 6: Final answer
    x = 84,890.82

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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.