Home / 171,212.95-236,328.69-120,238.03

Finding the Fourth Proportional to 171,212.95, 236,328.69 and 120,238.03

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Solution

The fourth proportional to 171,212.95, 236,328.69 and 120,238.03 is: 165,966.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,212.95 : 236,328.69 = 120,238.03 : x
  2. Step 2: Convert to fraction form
    171,212.95/236,328.69 = 120,238.03/x
  3. Step 3: Cross multiply
    171,212.95x = 236,328.69 × 120,238.03
  4. Step 4: Simplify right side
    171,212.95x = 28,415,696,118.08
  5. Step 5: Solve for x
    x = 28,415,696,118.08/171,212.95
  6. Step 6: Final answer
    x = 165,966.98

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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.