Home / 120,353.32-180,573.18-53,787.88

Finding the Fourth Proportional to 120,353.32, 180,573.18 and 53,787.88

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Solution

The fourth proportional to 120,353.32, 180,573.18 and 53,787.88 is: 80,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,353.32 : 180,573.18 = 53,787.88 : x
  2. Step 2: Convert to fraction form
    120,353.32/180,573.18 = 53,787.88/x
  3. Step 3: Cross multiply
    120,353.32x = 180,573.18 × 53,787.88
  4. Step 4: Simplify right side
    120,353.32x = 9,712,648,537.06
  5. Step 5: Solve for x
    x = 9,712,648,537.06/120,353.32
  6. Step 6: Final answer
    x = 80,701.13

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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.