Home / 135,695.16-203,515.02-51,426.27

Finding the Fourth Proportional to 135,695.16, 203,515.02 and 51,426.27

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Solution

The fourth proportional to 135,695.16, 203,515.02 and 51,426.27 is: 77,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,695.16 : 203,515.02 = 51,426.27 : x
  2. Step 2: Convert to fraction form
    135,695.16/203,515.02 = 51,426.27/x
  3. Step 3: Cross multiply
    135,695.16x = 203,515.02 × 51,426.27
  4. Step 4: Simplify right side
    135,695.16x = 10,466,018,367.58
  5. Step 5: Solve for x
    x = 10,466,018,367.58/135,695.16
  6. Step 6: Final answer
    x = 77,128.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.