Home / 130,611.27-180,263.25-79,653.56

Finding the Fourth Proportional to 130,611.27, 180,263.25 and 79,653.56

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Solution

The fourth proportional to 130,611.27, 180,263.25 and 79,653.56 is: 109,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,611.27 : 180,263.25 = 79,653.56 : x
  2. Step 2: Convert to fraction form
    130,611.27/180,263.25 = 79,653.56/x
  3. Step 3: Cross multiply
    130,611.27x = 180,263.25 × 79,653.56
  4. Step 4: Simplify right side
    130,611.27x = 14,358,608,698.35
  5. Step 5: Solve for x
    x = 14,358,608,698.35/130,611.27
  6. Step 6: Final answer
    x = 109,933.92

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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.