Home / 136,950.27-188,987.82-76,521.40

Finding the Fourth Proportional to 136,950.27, 188,987.82 and 76,521.40

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Solution

The fourth proportional to 136,950.27, 188,987.82 and 76,521.40 is: 105,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,950.27 : 188,987.82 = 76,521.40 : x
  2. Step 2: Convert to fraction form
    136,950.27/188,987.82 = 76,521.40/x
  3. Step 3: Cross multiply
    136,950.27x = 188,987.82 × 76,521.40
  4. Step 4: Simplify right side
    136,950.27x = 14,461,612,569.35
  5. Step 5: Solve for x
    x = 14,461,612,569.35/136,950.27
  6. Step 6: Final answer
    x = 105,597.55

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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.