Home / 127,619.42-176,111.78-71,029.58

Finding the Fourth Proportional to 127,619.42, 176,111.78 and 71,029.58

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Solution

The fourth proportional to 127,619.42, 176,111.78 and 71,029.58 is: 98,019.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,619.42 : 176,111.78 = 71,029.58 : x
  2. Step 2: Convert to fraction form
    127,619.42/176,111.78 = 71,029.58/x
  3. Step 3: Cross multiply
    127,619.42x = 176,111.78 × 71,029.58
  4. Step 4: Simplify right side
    127,619.42x = 12,509,144,530.75
  5. Step 5: Solve for x
    x = 12,509,144,530.75/127,619.42
  6. Step 6: Final answer
    x = 98,019.13

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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.