Home / 99,725.12-149,495.34-52,330.40

Finding the Fourth Proportional to 99,725.12, 149,495.34 and 52,330.40

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Solution

The fourth proportional to 99,725.12, 149,495.34 and 52,330.40 is: 78,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,725.12 : 149,495.34 = 52,330.40 : x
  2. Step 2: Convert to fraction form
    99,725.12/149,495.34 = 52,330.40/x
  3. Step 3: Cross multiply
    99,725.12x = 149,495.34 × 52,330.40
  4. Step 4: Simplify right side
    99,725.12x = 7,823,150,940.34
  5. Step 5: Solve for x
    x = 7,823,150,940.34/99,725.12
  6. Step 6: Final answer
    x = 78,447.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.