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Finding the Fourth Proportional to 130,185.88, 179,645.34 and 75,748.12

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Solution

The fourth proportional to 130,185.88, 179,645.34 and 75,748.12 is: 104,525.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,185.88 : 179,645.34 = 75,748.12 : x
  2. Step 2: Convert to fraction form
    130,185.88/179,645.34 = 75,748.12/x
  3. Step 3: Cross multiply
    130,185.88x = 179,645.34 × 75,748.12
  4. Step 4: Simplify right side
    130,185.88x = 13,607,796,771.76
  5. Step 5: Solve for x
    x = 13,607,796,771.76/130,185.88
  6. Step 6: Final answer
    x = 104,525.90

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1.5x scale

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.