Home / 136,354.07-188,159.01-85,364.47

Finding the Fourth Proportional to 136,354.07, 188,159.01 and 85,364.47

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Solution

The fourth proportional to 136,354.07, 188,159.01 and 85,364.47 is: 117,796.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,354.07 : 188,159.01 = 85,364.47 : x
  2. Step 2: Convert to fraction form
    136,354.07/188,159.01 = 85,364.47/x
  3. Step 3: Cross multiply
    136,354.07x = 188,159.01 × 85,364.47
  4. Step 4: Simplify right side
    136,354.07x = 16,062,094,164.37
  5. Step 5: Solve for x
    x = 16,062,094,164.37/136,354.07
  6. Step 6: Final answer
    x = 117,796.95

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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.