Home / 156,865.26-216,364.59-103,133.10

Finding the Fourth Proportional to 156,865.26, 216,364.59 and 103,133.10

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Solution

The fourth proportional to 156,865.26, 216,364.59 and 103,133.10 is: 142,251.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,865.26 : 216,364.59 = 103,133.10 : x
  2. Step 2: Convert to fraction form
    156,865.26/216,364.59 = 103,133.10/x
  3. Step 3: Cross multiply
    156,865.26x = 216,364.59 × 103,133.10
  4. Step 4: Simplify right side
    156,865.26x = 22,314,350,896.93
  5. Step 5: Solve for x
    x = 22,314,350,896.93/156,865.26
  6. Step 6: Final answer
    x = 142,251.71

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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.