Home / 155,024.28-213,786.54-101,355.30

Finding the Fourth Proportional to 155,024.28, 213,786.54 and 101,355.30

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Solution

The fourth proportional to 155,024.28, 213,786.54 and 101,355.30 is: 139,774.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,024.28 : 213,786.54 = 101,355.30 : x
  2. Step 2: Convert to fraction form
    155,024.28/213,786.54 = 101,355.30/x
  3. Step 3: Cross multiply
    155,024.28x = 213,786.54 × 101,355.30
  4. Step 4: Simplify right side
    155,024.28x = 21,668,398,897.66
  5. Step 5: Solve for x
    x = 21,668,398,897.66/155,024.28
  6. Step 6: Final answer
    x = 139,774.23

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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.