Home / 133,071.13-183,669-87,757.30

Finding the Fourth Proportional to 133,071.13, 183,669 and 87,757.30

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Solution

The fourth proportional to 133,071.13, 183,669 and 87,757.30 is: 121,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,071.13 : 183,669 = 87,757.30 : x
  2. Step 2: Convert to fraction form
    133,071.13/183,669 = 87,757.30/x
  3. Step 3: Cross multiply
    133,071.13x = 183,669 × 87,757.30
  4. Step 4: Simplify right side
    133,071.13x = 16,118,295,533.70
  5. Step 5: Solve for x
    x = 16,118,295,533.70/133,071.13
  6. Step 6: Final answer
    x = 121,125.41

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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.