Home / 127,742.58-176,290.20-71,153.94

Finding the Fourth Proportional to 127,742.58, 176,290.20 and 71,153.94

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Solution

The fourth proportional to 127,742.58, 176,290.20 and 71,153.94 is: 98,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,742.58 : 176,290.20 = 71,153.94 : x
  2. Step 2: Convert to fraction form
    127,742.58/176,290.20 = 71,153.94/x
  3. Step 3: Cross multiply
    127,742.58x = 176,290.20 × 71,153.94
  4. Step 4: Simplify right side
    127,742.58x = 12,543,742,313.39
  5. Step 5: Solve for x
    x = 12,543,742,313.39/127,742.58
  6. Step 6: Final answer
    x = 98,195.47

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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.