Home / 190,633.38-263,071.62-103,417.20

Finding the Fourth Proportional to 190,633.38, 263,071.62 and 103,417.20

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Solution

The fourth proportional to 190,633.38, 263,071.62 and 103,417.20 is: 142,714.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,633.38 : 263,071.62 = 103,417.20 : x
  2. Step 2: Convert to fraction form
    190,633.38/263,071.62 = 103,417.20/x
  3. Step 3: Cross multiply
    190,633.38x = 263,071.62 × 103,417.20
  4. Step 4: Simplify right side
    190,633.38x = 27,206,130,339.86
  5. Step 5: Solve for x
    x = 27,206,130,339.86/190,633.38
  6. Step 6: Final answer
    x = 142,714.41

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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.