Home / 130,085.58-179,573.44-79,114.68

Finding the Fourth Proportional to 130,085.58, 179,573.44 and 79,114.68

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Solution

The fourth proportional to 130,085.58, 179,573.44 and 79,114.68 is: 109,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,085.58 : 179,573.44 = 79,114.68 : x
  2. Step 2: Convert to fraction form
    130,085.58/179,573.44 = 79,114.68/x
  3. Step 3: Cross multiply
    130,085.58x = 179,573.44 × 79,114.68
  4. Step 4: Simplify right side
    130,085.58x = 14,206,895,242.10
  5. Step 5: Solve for x
    x = 14,206,895,242.10/130,085.58
  6. Step 6: Final answer
    x = 109,211.91

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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.