Home / 156,665.44-216,192.08-85,043.04

Finding the Fourth Proportional to 156,665.44, 216,192.08 and 85,043.04

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Solution

The fourth proportional to 156,665.44, 216,192.08 and 85,043.04 is: 117,356.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,665.44 : 216,192.08 = 85,043.04 : x
  2. Step 2: Convert to fraction form
    156,665.44/216,192.08 = 85,043.04/x
  3. Step 3: Cross multiply
    156,665.44x = 216,192.08 × 85,043.04
  4. Step 4: Simplify right side
    156,665.44x = 18,385,631,707.12
  5. Step 5: Solve for x
    x = 18,385,631,707.12/156,665.44
  6. Step 6: Final answer
    x = 117,356.01

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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.