Home / 154,552.88-213,280.08-86,569.04

Finding the Fourth Proportional to 154,552.88, 213,280.08 and 86,569.04

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Solution

The fourth proportional to 154,552.88, 213,280.08 and 86,569.04 is: 119,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,552.88 : 213,280.08 = 86,569.04 : x
  2. Step 2: Convert to fraction form
    154,552.88/213,280.08 = 86,569.04/x
  3. Step 3: Cross multiply
    154,552.88x = 213,280.08 × 86,569.04
  4. Step 4: Simplify right side
    154,552.88x = 18,463,451,776.72
  5. Step 5: Solve for x
    x = 18,463,451,776.72/154,552.88
  6. Step 6: Final answer
    x = 119,463.65

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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.