Home / 136,457.36-188,308.32-76,027.76

Finding the Fourth Proportional to 136,457.36, 188,308.32 and 76,027.76

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Solution

The fourth proportional to 136,457.36, 188,308.32 and 76,027.76 is: 104,916.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,457.36 : 188,308.32 = 76,027.76 : x
  2. Step 2: Convert to fraction form
    136,457.36/188,308.32 = 76,027.76/x
  3. Step 3: Cross multiply
    136,457.36x = 188,308.32 × 76,027.76
  4. Step 4: Simplify right side
    136,457.36x = 14,316,659,758.96
  5. Step 5: Solve for x
    x = 14,316,659,758.96/136,457.36
  6. Step 6: Final answer
    x = 104,916.73

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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.