Home / 127,749.78-191,443.97-70,848.88

Finding the Fourth Proportional to 127,749.78, 191,443.97 and 70,848.88

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Solution

The fourth proportional to 127,749.78, 191,443.97 and 70,848.88 is: 106,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,749.78 : 191,443.97 = 70,848.88 : x
  2. Step 2: Convert to fraction form
    127,749.78/191,443.97 = 70,848.88/x
  3. Step 3: Cross multiply
    127,749.78x = 191,443.97 × 70,848.88
  4. Step 4: Simplify right side
    127,749.78x = 13,563,590,555.77
  5. Step 5: Solve for x
    x = 13,563,590,555.77/127,749.78
  6. Step 6: Final answer
    x = 106,173.10

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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.