Home / 165,438.21-248,036.33-53,054.45

Finding the Fourth Proportional to 165,438.21, 248,036.33 and 53,054.45

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Solution

The fourth proportional to 165,438.21, 248,036.33 and 53,054.45 is: 79,542.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,438.21 : 248,036.33 = 53,054.45 : x
  2. Step 2: Convert to fraction form
    165,438.21/248,036.33 = 53,054.45/x
  3. Step 3: Cross multiply
    165,438.21x = 248,036.33 × 53,054.45
  4. Step 4: Simplify right side
    165,438.21x = 13,159,431,931.99
  5. Step 5: Solve for x
    x = 13,159,431,931.99/165,438.21
  6. Step 6: Final answer
    x = 79,542.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.