Home / 127,100.03-175,403.51-76,121.06

Finding the Fourth Proportional to 127,100.03, 175,403.51 and 76,121.06

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Solution

The fourth proportional to 127,100.03, 175,403.51 and 76,121.06 is: 105,050.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,100.03 : 175,403.51 = 76,121.06 : x
  2. Step 2: Convert to fraction form
    127,100.03/175,403.51 = 76,121.06/x
  3. Step 3: Cross multiply
    127,100.03x = 175,403.51 × 76,121.06
  4. Step 4: Simplify right side
    127,100.03x = 13,351,899,851.30
  5. Step 5: Solve for x
    x = 13,351,899,851.30/127,100.03
  6. Step 6: Final answer
    x = 105,050.33

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1.5x scale

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.