Home / 120,780.32-166,671.27-67,068.74

Finding the Fourth Proportional to 120,780.32, 166,671.27 and 67,068.74

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Solution

The fourth proportional to 120,780.32, 166,671.27 and 67,068.74 is: 92,551.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,780.32 : 166,671.27 = 67,068.74 : x
  2. Step 2: Convert to fraction form
    120,780.32/166,671.27 = 67,068.74/x
  3. Step 3: Cross multiply
    120,780.32x = 166,671.27 × 67,068.74
  4. Step 4: Simplify right side
    120,780.32x = 11,178,432,489.78
  5. Step 5: Solve for x
    x = 11,178,432,489.78/120,780.32
  6. Step 6: Final answer
    x = 92,551.77

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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.