Home / 113,820.80-170,342.40-104,489.60

Finding the Fourth Proportional to 113,820.80, 170,342.40 and 104,489.60

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Solution

The fourth proportional to 113,820.80, 170,342.40 and 104,489.60 is: 156,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,820.80 : 170,342.40 = 104,489.60 : x
  2. Step 2: Convert to fraction form
    113,820.80/170,342.40 = 104,489.60/x
  3. Step 3: Cross multiply
    113,820.80x = 170,342.40 × 104,489.60
  4. Step 4: Simplify right side
    113,820.80x = 17,799,009,239.04
  5. Step 5: Solve for x
    x = 17,799,009,239.04/113,820.80
  6. Step 6: Final answer
    x = 156,377.47

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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.