Home / 136,457.36-188,324.96-76,037.84

Finding the Fourth Proportional to 136,457.36, 188,324.96 and 76,037.84

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Solution

The fourth proportional to 136,457.36, 188,324.96 and 76,037.84 is: 104,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,457.36 : 188,324.96 = 76,037.84 : x
  2. Step 2: Convert to fraction form
    136,457.36/188,324.96 = 76,037.84/x
  3. Step 3: Cross multiply
    136,457.36x = 188,324.96 × 76,037.84
  4. Step 4: Simplify right side
    136,457.36x = 14,319,823,176.49
  5. Step 5: Solve for x
    x = 14,319,823,176.49/136,457.36
  6. Step 6: Final answer
    x = 104,939.91

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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.