Home / 120,787.64-181,146.90-37,659.32

Finding the Fourth Proportional to 120,787.64, 181,146.90 and 37,659.32

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Solution

The fourth proportional to 120,787.64, 181,146.90 and 37,659.32 is: 56,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,787.64 : 181,146.90 = 37,659.32 : x
  2. Step 2: Convert to fraction form
    120,787.64/181,146.90 = 37,659.32/x
  3. Step 3: Cross multiply
    120,787.64x = 181,146.90 × 37,659.32
  4. Step 4: Simplify right side
    120,787.64x = 6,821,869,074.11
  5. Step 5: Solve for x
    x = 6,821,869,074.11/120,787.64
  6. Step 6: Final answer
    x = 56,478.20

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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.