Home / 114,326.10-171,427.29-90,785.09

Finding the Fourth Proportional to 114,326.10, 171,427.29 and 90,785.09

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Solution

The fourth proportional to 114,326.10, 171,427.29 and 90,785.09 is: 136,128.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,326.10 : 171,427.29 = 90,785.09 : x
  2. Step 2: Convert to fraction form
    114,326.10/171,427.29 = 90,785.09/x
  3. Step 3: Cross multiply
    114,326.10x = 171,427.29 × 90,785.09
  4. Step 4: Simplify right side
    114,326.10x = 15,563,041,951.11
  5. Step 5: Solve for x
    x = 15,563,041,951.11/114,326.10
  6. Step 6: Final answer
    x = 136,128.51

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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.