Home / 126,977.60-175,168.70-75,980.06

Finding the Fourth Proportional to 126,977.60, 175,168.70 and 75,980.06

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Solution

The fourth proportional to 126,977.60, 175,168.70 and 75,980.06 is: 104,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,977.60 : 175,168.70 = 75,980.06 : x
  2. Step 2: Convert to fraction form
    126,977.60/175,168.70 = 75,980.06/x
  3. Step 3: Cross multiply
    126,977.60x = 175,168.70 × 75,980.06
  4. Step 4: Simplify right side
    126,977.60x = 13,309,327,080.38
  5. Step 5: Solve for x
    x = 13,309,327,080.38/126,977.60
  6. Step 6: Final answer
    x = 104,816.34

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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.