Home / 154,814.20-213,663.36-91,157.92

Finding the Fourth Proportional to 154,814.20, 213,663.36 and 91,157.92

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Solution

The fourth proportional to 154,814.20, 213,663.36 and 91,157.92 is: 125,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,814.20 : 213,663.36 = 91,157.92 : x
  2. Step 2: Convert to fraction form
    154,814.20/213,663.36 = 91,157.92/x
  3. Step 3: Cross multiply
    154,814.20x = 213,663.36 × 91,157.92
  4. Step 4: Simplify right side
    154,814.20x = 19,477,107,477.81
  5. Step 5: Solve for x
    x = 19,477,107,477.81/154,814.20
  6. Step 6: Final answer
    x = 125,809.57

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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.