Home / 133,261.16-183,900.58-76,671.40

Finding the Fourth Proportional to 133,261.16, 183,900.58 and 76,671.40

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Solution

The fourth proportional to 133,261.16, 183,900.58 and 76,671.40 is: 105,806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,261.16 : 183,900.58 = 76,671.40 : x
  2. Step 2: Convert to fraction form
    133,261.16/183,900.58 = 76,671.40/x
  3. Step 3: Cross multiply
    133,261.16x = 183,900.58 × 76,671.40
  4. Step 4: Simplify right side
    133,261.16x = 14,099,914,929.41
  5. Step 5: Solve for x
    x = 14,099,914,929.41/133,261.16
  6. Step 6: Final answer
    x = 105,806.64

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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.