Home / 153,480.30-211,835.50-103,150.14

Finding the Fourth Proportional to 153,480.30, 211,835.50 and 103,150.14

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Solution

The fourth proportional to 153,480.30, 211,835.50 and 103,150.14 is: 142,369.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,480.30 : 211,835.50 = 103,150.14 : x
  2. Step 2: Convert to fraction form
    153,480.30/211,835.50 = 103,150.14/x
  3. Step 3: Cross multiply
    153,480.30x = 211,835.50 × 103,150.14
  4. Step 4: Simplify right side
    153,480.30x = 21,850,861,481.97
  5. Step 5: Solve for x
    x = 21,850,861,481.97/153,480.30
  6. Step 6: Final answer
    x = 142,369.16

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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.