Home / 127,126.63-175,361.83-79,296.91

Finding the Fourth Proportional to 127,126.63, 175,361.83 and 79,296.91

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Solution

The fourth proportional to 127,126.63, 175,361.83 and 79,296.91 is: 109,384.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,126.63 : 175,361.83 = 79,296.91 : x
  2. Step 2: Convert to fraction form
    127,126.63/175,361.83 = 79,296.91/x
  3. Step 3: Cross multiply
    127,126.63x = 175,361.83 × 79,296.91
  4. Step 4: Simplify right side
    127,126.63x = 13,905,651,250.95
  5. Step 5: Solve for x
    x = 13,905,651,250.95/127,126.63
  6. Step 6: Final answer
    x = 109,384.25

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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.