Home / 127,190.76-175,525.89-76,256.74

Finding the Fourth Proportional to 127,190.76, 175,525.89 and 76,256.74

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Solution

The fourth proportional to 127,190.76, 175,525.89 and 76,256.74 is: 105,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,190.76 : 175,525.89 = 76,256.74 : x
  2. Step 2: Convert to fraction form
    127,190.76/175,525.89 = 76,256.74/x
  3. Step 3: Cross multiply
    127,190.76x = 175,525.89 × 76,256.74
  4. Step 4: Simplify right side
    127,190.76x = 13,385,032,090.44
  5. Step 5: Solve for x
    x = 13,385,032,090.44/127,190.76
  6. Step 6: Final answer
    x = 105,235.89

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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.