Home / 156,935.36-216,575.04-85,320.29

Finding the Fourth Proportional to 156,935.36, 216,575.04 and 85,320.29

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Solution

The fourth proportional to 156,935.36, 216,575.04 and 85,320.29 is: 117,744.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.36 : 216,575.04 = 85,320.29 : x
  2. Step 2: Convert to fraction form
    156,935.36/216,575.04 = 85,320.29/x
  3. Step 3: Cross multiply
    156,935.36x = 216,575.04 × 85,320.29
  4. Step 4: Simplify right side
    156,935.36x = 18,478,245,219.56
  5. Step 5: Solve for x
    x = 18,478,245,219.56/156,935.36
  6. Step 6: Final answer
    x = 117,744.31

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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.