Home / 130,310.02-179,716.83-100,168.30

Finding the Fourth Proportional to 130,310.02, 179,716.83 and 100,168.30

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Solution

The fourth proportional to 130,310.02, 179,716.83 and 100,168.30 is: 138,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,310.02 : 179,716.83 = 100,168.30 : x
  2. Step 2: Convert to fraction form
    130,310.02/179,716.83 = 100,168.30/x
  3. Step 3: Cross multiply
    130,310.02x = 179,716.83 × 100,168.30
  4. Step 4: Simplify right side
    130,310.02x = 18,001,929,342.49
  5. Step 5: Solve for x
    x = 18,001,929,342.49/130,310.02
  6. Step 6: Final answer
    x = 138,146.93

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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.