Home / 127,264.72-175,704.24-82,020.64

Finding the Fourth Proportional to 127,264.72, 175,704.24 and 82,020.64

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Solution

The fourth proportional to 127,264.72, 175,704.24 and 82,020.64 is: 113,239.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,264.72 : 175,704.24 = 82,020.64 : x
  2. Step 2: Convert to fraction form
    127,264.72/175,704.24 = 82,020.64/x
  3. Step 3: Cross multiply
    127,264.72x = 175,704.24 × 82,020.64
  4. Step 4: Simplify right side
    127,264.72x = 14,411,374,215.51
  5. Step 5: Solve for x
    x = 14,411,374,215.51/127,264.72
  6. Step 6: Final answer
    x = 113,239.35

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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.