Home / 133,088.40-183,680.52-76,498.56

Finding the Fourth Proportional to 133,088.40, 183,680.52 and 76,498.56

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Solution

The fourth proportional to 133,088.40, 183,680.52 and 76,498.56 is: 105,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,088.40 : 183,680.52 = 76,498.56 : x
  2. Step 2: Convert to fraction form
    133,088.40/183,680.52 = 76,498.56/x
  3. Step 3: Cross multiply
    133,088.40x = 183,680.52 × 76,498.56
  4. Step 4: Simplify right side
    133,088.40x = 14,051,295,280.05
  5. Step 5: Solve for x
    x = 14,051,295,280.05/133,088.40
  6. Step 6: Final answer
    x = 105,578.66

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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.