Home / 137,256.17-189,531.72-86,353.75

Finding the Fourth Proportional to 137,256.17, 189,531.72 and 86,353.75

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Solution

The fourth proportional to 137,256.17, 189,531.72 and 86,353.75 is: 119,242.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,256.17 : 189,531.72 = 86,353.75 : x
  2. Step 2: Convert to fraction form
    137,256.17/189,531.72 = 86,353.75/x
  3. Step 3: Cross multiply
    137,256.17x = 189,531.72 × 86,353.75
  4. Step 4: Simplify right side
    137,256.17x = 16,366,774,179.62
  5. Step 5: Solve for x
    x = 16,366,774,179.62/137,256.17
  6. Step 6: Final answer
    x = 119,242.54

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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.