Home / 105,660.36-158,453.88-42,461.76

Finding the Fourth Proportional to 105,660.36, 158,453.88 and 42,461.76

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Solution

The fourth proportional to 105,660.36, 158,453.88 and 42,461.76 is: 63,677.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,660.36 : 158,453.88 = 42,461.76 : x
  2. Step 2: Convert to fraction form
    105,660.36/158,453.88 = 42,461.76/x
  3. Step 3: Cross multiply
    105,660.36x = 158,453.88 × 42,461.76
  4. Step 4: Simplify right side
    105,660.36x = 6,728,230,623.63
  5. Step 5: Solve for x
    x = 6,728,230,623.63/105,660.36
  6. Step 6: Final answer
    x = 63,677.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.