Home / 111,308.38-153,628.74-102,341.68

Finding the Fourth Proportional to 111,308.38, 153,628.74 and 102,341.68

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Solution

The fourth proportional to 111,308.38, 153,628.74 and 102,341.68 is: 141,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,308.38 : 153,628.74 = 102,341.68 : x
  2. Step 2: Convert to fraction form
    111,308.38/153,628.74 = 102,341.68/x
  3. Step 3: Cross multiply
    111,308.38x = 153,628.74 × 102,341.68
  4. Step 4: Simplify right side
    111,308.38x = 15,722,623,347.88
  5. Step 5: Solve for x
    x = 15,722,623,347.88/111,308.38
  6. Step 6: Final answer
    x = 141,252.83

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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.