Home / 127,345.46-190,899.41-43,047

Finding the Fourth Proportional to 127,345.46, 190,899.41 and 43,047

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Solution

The fourth proportional to 127,345.46, 190,899.41 and 43,047 is: 64,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,345.46 : 190,899.41 = 43,047 : x
  2. Step 2: Convert to fraction form
    127,345.46/190,899.41 = 43,047/x
  3. Step 3: Cross multiply
    127,345.46x = 190,899.41 × 43,047
  4. Step 4: Simplify right side
    127,345.46x = 8,217,646,687.04
  5. Step 5: Solve for x
    x = 8,217,646,687.04/127,345.46
  6. Step 6: Final answer
    x = 64,530.35

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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.