Home / 115,376.76-159,234.43-66,968.28

Finding the Fourth Proportional to 115,376.76, 159,234.43 and 66,968.28

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Solution

The fourth proportional to 115,376.76, 159,234.43 and 66,968.28 is: 92,424.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,376.76 : 159,234.43 = 66,968.28 : x
  2. Step 2: Convert to fraction form
    115,376.76/159,234.43 = 66,968.28/x
  3. Step 3: Cross multiply
    115,376.76x = 159,234.43 × 66,968.28
  4. Step 4: Simplify right side
    115,376.76x = 10,663,655,893.88
  5. Step 5: Solve for x
    x = 10,663,655,893.88/115,376.76
  6. Step 6: Final answer
    x = 92,424.64

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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.