Home / 127,347.05-175,728.64-73,635.55

Finding the Fourth Proportional to 127,347.05, 175,728.64 and 73,635.55

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Solution

The fourth proportional to 127,347.05, 175,728.64 and 73,635.55 is: 101,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,347.05 : 175,728.64 = 73,635.55 : x
  2. Step 2: Convert to fraction form
    127,347.05/175,728.64 = 73,635.55/x
  3. Step 3: Cross multiply
    127,347.05x = 175,728.64 × 73,635.55
  4. Step 4: Simplify right side
    127,347.05x = 12,939,873,810.33
  5. Step 5: Solve for x
    x = 12,939,873,810.33/127,347.05
  6. Step 6: Final answer
    x = 101,611.10

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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.