Home / 154,962.24-213,605.28-101,220.36

Finding the Fourth Proportional to 154,962.24, 213,605.28 and 101,220.36

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Solution

The fourth proportional to 154,962.24, 213,605.28 and 101,220.36 is: 139,525.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,962.24 : 213,605.28 = 101,220.36 : x
  2. Step 2: Convert to fraction form
    154,962.24/213,605.28 = 101,220.36/x
  3. Step 3: Cross multiply
    154,962.24x = 213,605.28 × 101,220.36
  4. Step 4: Simplify right side
    154,962.24x = 21,621,203,339.50
  5. Step 5: Solve for x
    x = 21,621,203,339.50/154,962.24
  6. Step 6: Final answer
    x = 139,525.62

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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.