Home / 154,541.88-213,192.54-100,802.52

Finding the Fourth Proportional to 154,541.88, 213,192.54 and 100,802.52

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Solution

The fourth proportional to 154,541.88, 213,192.54 and 100,802.52 is: 139,058.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,541.88 : 213,192.54 = 100,802.52 : x
  2. Step 2: Convert to fraction form
    154,541.88/213,192.54 = 100,802.52/x
  3. Step 3: Cross multiply
    154,541.88x = 213,192.54 × 100,802.52
  4. Step 4: Simplify right side
    154,541.88x = 21,490,345,277.20
  5. Step 5: Solve for x
    x = 21,490,345,277.20/154,541.88
  6. Step 6: Final answer
    x = 139,058.39

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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.