Home / 154,816.20-213,666.12-91,159.92

Finding the Fourth Proportional to 154,816.20, 213,666.12 and 91,159.92

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Solution

The fourth proportional to 154,816.20, 213,666.12 and 91,159.92 is: 125,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,816.20 : 213,666.12 = 91,159.92 : x
  2. Step 2: Convert to fraction form
    154,816.20/213,666.12 = 91,159.92/x
  3. Step 3: Cross multiply
    154,816.20x = 213,666.12 × 91,159.92
  4. Step 4: Simplify right side
    154,816.20x = 19,477,786,405.91
  5. Step 5: Solve for x
    x = 19,477,786,405.91/154,816.20
  6. Step 6: Final answer
    x = 125,812.33

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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.