Home / 115,407.73-159,289.23-67,676.45

Finding the Fourth Proportional to 115,407.73, 159,289.23 and 67,676.45

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Solution

The fourth proportional to 115,407.73, 159,289.23 and 67,676.45 is: 93,409.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,407.73 : 159,289.23 = 67,676.45 : x
  2. Step 2: Convert to fraction form
    115,407.73/159,289.23 = 67,676.45/x
  3. Step 3: Cross multiply
    115,407.73x = 159,289.23 × 67,676.45
  4. Step 4: Simplify right side
    115,407.73x = 10,780,130,410.98
  5. Step 5: Solve for x
    x = 10,780,130,410.98/115,407.73
  6. Step 6: Final answer
    x = 93,409.09

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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.