Home / 90,935.90-136,277.42-79,065.35

Finding the Fourth Proportional to 90,935.90, 136,277.42 and 79,065.35

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Solution

The fourth proportional to 90,935.90, 136,277.42 and 79,065.35 is: 118,488.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,935.90 : 136,277.42 = 79,065.35 : x
  2. Step 2: Convert to fraction form
    90,935.90/136,277.42 = 79,065.35/x
  3. Step 3: Cross multiply
    90,935.90x = 136,277.42 × 79,065.35
  4. Step 4: Simplify right side
    90,935.90x = 10,774,821,514.07
  5. Step 5: Solve for x
    x = 10,774,821,514.07/90,935.90
  6. Step 6: Final answer
    x = 118,488.09

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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.