Home / 137,255.85-189,531.27-86,353.41

Finding the Fourth Proportional to 137,255.85, 189,531.27 and 86,353.41

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Solution

The fourth proportional to 137,255.85, 189,531.27 and 86,353.41 is: 119,242.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,255.85 : 189,531.27 = 86,353.41 : x
  2. Step 2: Convert to fraction form
    137,255.85/189,531.27 = 86,353.41/x
  3. Step 3: Cross multiply
    137,255.85x = 189,531.27 × 86,353.41
  4. Step 4: Simplify right side
    137,255.85x = 16,366,671,466.13
  5. Step 5: Solve for x
    x = 16,366,671,466.13/137,255.85
  6. Step 6: Final answer
    x = 119,242.07

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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.