Home / 119,131.84-164,400.70-65,416.35

Finding the Fourth Proportional to 119,131.84, 164,400.70 and 65,416.35

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Solution

The fourth proportional to 119,131.84, 164,400.70 and 65,416.35 is: 90,273.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,131.84 : 164,400.70 = 65,416.35 : x
  2. Step 2: Convert to fraction form
    119,131.84/164,400.70 = 65,416.35/x
  3. Step 3: Cross multiply
    119,131.84x = 164,400.70 × 65,416.35
  4. Step 4: Simplify right side
    119,131.84x = 10,754,493,731.45
  5. Step 5: Solve for x
    x = 10,754,493,731.45/119,131.84
  6. Step 6: Final answer
    x = 90,273.88

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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.