Home / 127,140.30-190,710.45-73,996.20

Finding the Fourth Proportional to 127,140.30, 190,710.45 and 73,996.20

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Solution

The fourth proportional to 127,140.30, 190,710.45 and 73,996.20 is: 110,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.30 : 190,710.45 = 73,996.20 : x
  2. Step 2: Convert to fraction form
    127,140.30/190,710.45 = 73,996.20/x
  3. Step 3: Cross multiply
    127,140.30x = 190,710.45 × 73,996.20
  4. Step 4: Simplify right side
    127,140.30x = 14,111,848,600.29
  5. Step 5: Solve for x
    x = 14,111,848,600.29/127,140.30
  6. Step 6: Final answer
    x = 110,994.30

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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.