Home / 133,228.50-183,855.33-76,639.88

Finding the Fourth Proportional to 133,228.50, 183,855.33 and 76,639.88

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Solution

The fourth proportional to 133,228.50, 183,855.33 and 76,639.88 is: 105,763.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,228.50 : 183,855.33 = 76,639.88 : x
  2. Step 2: Convert to fraction form
    133,228.50/183,855.33 = 76,639.88/x
  3. Step 3: Cross multiply
    133,228.50x = 183,855.33 × 76,639.88
  4. Step 4: Simplify right side
    133,228.50x = 14,090,649,509.28
  5. Step 5: Solve for x
    x = 14,090,649,509.28/133,228.50
  6. Step 6: Final answer
    x = 105,763.03

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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.