Home / 157,582.80-217,467.18-85,965.30

Finding the Fourth Proportional to 157,582.80, 217,467.18 and 85,965.30

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Solution

The fourth proportional to 157,582.80, 217,467.18 and 85,965.30 is: 118,633.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,582.80 : 217,467.18 = 85,965.30 : x
  2. Step 2: Convert to fraction form
    157,582.80/217,467.18 = 85,965.30/x
  3. Step 3: Cross multiply
    157,582.80x = 217,467.18 × 85,965.30
  4. Step 4: Simplify right side
    157,582.80x = 18,694,631,368.85
  5. Step 5: Solve for x
    x = 18,694,631,368.85/157,582.80
  6. Step 6: Final answer
    x = 118,633.70

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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.