Home / 127,290.50-190,887.75-102,269.06

Finding the Fourth Proportional to 127,290.50, 190,887.75 and 102,269.06

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Solution

The fourth proportional to 127,290.50, 190,887.75 and 102,269.06 is: 153,365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,290.50 : 190,887.75 = 102,269.06 : x
  2. Step 2: Convert to fraction form
    127,290.50/190,887.75 = 102,269.06/x
  3. Step 3: Cross multiply
    127,290.50x = 190,887.75 × 102,269.06
  4. Step 4: Simplify right side
    127,290.50x = 19,521,910,758.02
  5. Step 5: Solve for x
    x = 19,521,910,758.02/127,290.50
  6. Step 6: Final answer
    x = 153,365.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.