Home / 156,534.34-216,015.72-84,913.75

Finding the Fourth Proportional to 156,534.34, 216,015.72 and 84,913.75

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Solution

The fourth proportional to 156,534.34, 216,015.72 and 84,913.75 is: 117,180.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,534.34 : 216,015.72 = 84,913.75 : x
  2. Step 2: Convert to fraction form
    156,534.34/216,015.72 = 84,913.75/x
  3. Step 3: Cross multiply
    156,534.34x = 216,015.72 × 84,913.75
  4. Step 4: Simplify right side
    156,534.34x = 18,342,704,844.15
  5. Step 5: Solve for x
    x = 18,342,704,844.15/156,534.34
  6. Step 6: Final answer
    x = 117,180.07

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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.