Home / 123,904.60-185,856.90-40,787.80

Finding the Fourth Proportional to 123,904.60, 185,856.90 and 40,787.80

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Solution

The fourth proportional to 123,904.60, 185,856.90 and 40,787.80 is: 61,181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,904.60 : 185,856.90 = 40,787.80 : x
  2. Step 2: Convert to fraction form
    123,904.60/185,856.90 = 40,787.80/x
  3. Step 3: Cross multiply
    123,904.60x = 185,856.90 × 40,787.80
  4. Step 4: Simplify right side
    123,904.60x = 7,580,694,065.82
  5. Step 5: Solve for x
    x = 7,580,694,065.82/123,904.60
  6. Step 6: Final answer
    x = 61,181.70

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1.5x scale

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.