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Finding the Fourth Proportional to 136,495.35, 188,363.76 and 76,064.67

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Solution

The fourth proportional to 136,495.35, 188,363.76 and 76,064.67 is: 104,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,495.35 : 188,363.76 = 76,064.67 : x
  2. Step 2: Convert to fraction form
    136,495.35/188,363.76 = 76,064.67/x
  3. Step 3: Cross multiply
    136,495.35x = 188,363.76 × 76,064.67
  4. Step 4: Simplify right side
    136,495.35x = 14,327,827,244.36
  5. Step 5: Solve for x
    x = 14,327,827,244.36/136,495.35
  6. Step 6: Final answer
    x = 104,969.34

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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.