Home / 127,377.45-175,316.87-112,170.51

Finding the Fourth Proportional to 127,377.45, 175,316.87 and 112,170.51

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Solution

The fourth proportional to 127,377.45, 175,316.87 and 112,170.51 is: 154,386.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,377.45 : 175,316.87 = 112,170.51 : x
  2. Step 2: Convert to fraction form
    127,377.45/175,316.87 = 112,170.51/x
  3. Step 3: Cross multiply
    127,377.45x = 175,316.87 × 112,170.51
  4. Step 4: Simplify right side
    127,377.45x = 19,665,382,999.93
  5. Step 5: Solve for x
    x = 19,665,382,999.93/127,377.45
  6. Step 6: Final answer
    x = 154,386.69

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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.