Home / 126,979.61-190,475.49-104,751.77

Finding the Fourth Proportional to 126,979.61, 190,475.49 and 104,751.77

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Solution

The fourth proportional to 126,979.61, 190,475.49 and 104,751.77 is: 157,132.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,979.61 : 190,475.49 = 104,751.77 : x
  2. Step 2: Convert to fraction form
    126,979.61/190,475.49 = 104,751.77/x
  3. Step 3: Cross multiply
    126,979.61x = 190,475.49 × 104,751.77
  4. Step 4: Simplify right side
    126,979.61x = 19,952,644,719.12
  5. Step 5: Solve for x
    x = 19,952,644,719.12/126,979.61
  6. Step 6: Final answer
    x = 157,132.67

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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.