Home / 140,590.77-194,015.28-76,928.58

Finding the Fourth Proportional to 140,590.77, 194,015.28 and 76,928.58

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Solution

The fourth proportional to 140,590.77, 194,015.28 and 76,928.58 is: 106,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,590.77 : 194,015.28 = 76,928.58 : x
  2. Step 2: Convert to fraction form
    140,590.77/194,015.28 = 76,928.58/x
  3. Step 3: Cross multiply
    140,590.77x = 194,015.28 × 76,928.58
  4. Step 4: Simplify right side
    140,590.77x = 14,925,319,988.70
  5. Step 5: Solve for x
    x = 14,925,319,988.70/140,590.77
  6. Step 6: Final answer
    x = 106,161.45

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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.