Home / 113,127.05-156,080.21-65,362.97

Finding the Fourth Proportional to 113,127.05, 156,080.21 and 65,362.97

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Solution

The fourth proportional to 113,127.05, 156,080.21 and 65,362.97 is: 90,180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,127.05 : 156,080.21 = 65,362.97 : x
  2. Step 2: Convert to fraction form
    113,127.05/156,080.21 = 65,362.97/x
  3. Step 3: Cross multiply
    113,127.05x = 156,080.21 × 65,362.97
  4. Step 4: Simplify right side
    113,127.05x = 10,201,864,976.61
  5. Step 5: Solve for x
    x = 10,201,864,976.61/113,127.05
  6. Step 6: Final answer
    x = 90,180.60

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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.