Home / 120,159.72-180,152.10-57,757.32

Finding the Fourth Proportional to 120,159.72, 180,152.10 and 57,757.32

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Solution

The fourth proportional to 120,159.72, 180,152.10 and 57,757.32 is: 86,593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,159.72 : 180,152.10 = 57,757.32 : x
  2. Step 2: Convert to fraction form
    120,159.72/180,152.10 = 57,757.32/x
  3. Step 3: Cross multiply
    120,159.72x = 180,152.10 × 57,757.32
  4. Step 4: Simplify right side
    120,159.72x = 10,405,102,488.37
  5. Step 5: Solve for x
    x = 10,405,102,488.37/120,159.72
  6. Step 6: Final answer
    x = 86,593.93

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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.