Home / 156,725.36-216,275.01-85,103.81

Finding the Fourth Proportional to 156,725.36, 216,275.01 and 85,103.81

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Solution

The fourth proportional to 156,725.36, 216,275.01 and 85,103.81 is: 117,440.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,725.36 : 216,275.01 = 85,103.81 : x
  2. Step 2: Convert to fraction form
    156,725.36/216,275.01 = 85,103.81/x
  3. Step 3: Cross multiply
    156,725.36x = 216,275.01 × 85,103.81
  4. Step 4: Simplify right side
    156,725.36x = 18,405,826,933.27
  5. Step 5: Solve for x
    x = 18,405,826,933.27/156,725.36
  6. Step 6: Final answer
    x = 117,440.00

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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.