Home / 113,490.08-169,820.40-66,764.96

Finding the Fourth Proportional to 113,490.08, 169,820.40 and 66,764.96

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Solution

The fourth proportional to 113,490.08, 169,820.40 and 66,764.96 is: 99,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,490.08 : 169,820.40 = 66,764.96 : x
  2. Step 2: Convert to fraction form
    113,490.08/169,820.40 = 66,764.96/x
  3. Step 3: Cross multiply
    113,490.08x = 169,820.40 × 66,764.96
  4. Step 4: Simplify right side
    113,490.08x = 11,338,052,213.18
  5. Step 5: Solve for x
    x = 11,338,052,213.18/113,490.08
  6. Step 6: Final answer
    x = 99,903.46

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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.