Home / 127,645.40-176,145.90-71,055.56

Finding the Fourth Proportional to 127,645.40, 176,145.90 and 71,055.56

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Solution

The fourth proportional to 127,645.40, 176,145.90 and 71,055.56 is: 98,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,645.40 : 176,145.90 = 71,055.56 : x
  2. Step 2: Convert to fraction form
    127,645.40/176,145.90 = 71,055.56/x
  3. Step 3: Cross multiply
    127,645.40x = 176,145.90 × 71,055.56
  4. Step 4: Simplify right side
    127,645.40x = 12,516,145,566.20
  5. Step 5: Solve for x
    x = 12,516,145,566.20/127,645.40
  6. Step 6: Final answer
    x = 98,054.03

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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.