Home / 126,971.56-190,460.04-42,734.28

Finding the Fourth Proportional to 126,971.56, 190,460.04 and 42,734.28

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Solution

The fourth proportional to 126,971.56, 190,460.04 and 42,734.28 is: 64,102.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,971.56 : 190,460.04 = 42,734.28 : x
  2. Step 2: Convert to fraction form
    126,971.56/190,460.04 = 42,734.28/x
  3. Step 3: Cross multiply
    126,971.56x = 190,460.04 × 42,734.28
  4. Step 4: Simplify right side
    126,971.56x = 8,139,172,678.17
  5. Step 5: Solve for x
    x = 8,139,172,678.17/126,971.56
  6. Step 6: Final answer
    x = 64,102.33

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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.