Home / 136,450.32-188,315.28-76,030.80

Finding the Fourth Proportional to 136,450.32, 188,315.28 and 76,030.80

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Solution

The fourth proportional to 136,450.32, 188,315.28 and 76,030.80 is: 104,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,450.32 : 188,315.28 = 76,030.80 : x
  2. Step 2: Convert to fraction form
    136,450.32/188,315.28 = 76,030.80/x
  3. Step 3: Cross multiply
    136,450.32x = 188,315.28 × 76,030.80
  4. Step 4: Simplify right side
    136,450.32x = 14,317,761,390.62
  5. Step 5: Solve for x
    x = 14,317,761,390.62/136,450.32
  6. Step 6: Final answer
    x = 104,930.21

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1.5x scale

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.