Home / 86,954.27-120,238.53-69,018.13

Finding the Fourth Proportional to 86,954.27, 120,238.53 and 69,018.13

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Solution

The fourth proportional to 86,954.27, 120,238.53 and 69,018.13 is: 95,436.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,954.27 : 120,238.53 = 69,018.13 : x
  2. Step 2: Convert to fraction form
    86,954.27/120,238.53 = 69,018.13/x
  3. Step 3: Cross multiply
    86,954.27x = 120,238.53 × 69,018.13
  4. Step 4: Simplify right side
    86,954.27x = 8,298,638,470.57
  5. Step 5: Solve for x
    x = 8,298,638,470.57/86,954.27
  6. Step 6: Final answer
    x = 95,436.82

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1.5x scale

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.