Home / 131,811.04-181,912.26-75,230.92

Finding the Fourth Proportional to 131,811.04, 181,912.26 and 75,230.92

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Solution

The fourth proportional to 131,811.04, 181,912.26 and 75,230.92 is: 103,826.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,811.04 : 181,912.26 = 75,230.92 : x
  2. Step 2: Convert to fraction form
    131,811.04/181,912.26 = 75,230.92/x
  3. Step 3: Cross multiply
    131,811.04x = 181,912.26 × 75,230.92
  4. Step 4: Simplify right side
    131,811.04x = 13,685,426,679.08
  5. Step 5: Solve for x
    x = 13,685,426,679.08/131,811.04
  6. Step 6: Final answer
    x = 103,826.10

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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.