Home / 127,054.12-190,589.12-42,807.28

Finding the Fourth Proportional to 127,054.12, 190,589.12 and 42,807.28

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Solution

The fourth proportional to 127,054.12, 190,589.12 and 42,807.28 is: 64,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,054.12 : 190,589.12 = 42,807.28 : x
  2. Step 2: Convert to fraction form
    127,054.12/190,589.12 = 42,807.28/x
  3. Step 3: Cross multiply
    127,054.12x = 190,589.12 × 42,807.28
  4. Step 4: Simplify right side
    127,054.12x = 8,158,601,824.79
  5. Step 5: Solve for x
    x = 8,158,601,824.79/127,054.12
  6. Step 6: Final answer
    x = 64,213.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.