Home / 130,140.24-179,524.08-79,168.56

Finding the Fourth Proportional to 130,140.24, 179,524.08 and 79,168.56

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Solution

The fourth proportional to 130,140.24, 179,524.08 and 79,168.56 is: 109,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,140.24 : 179,524.08 = 79,168.56 : x
  2. Step 2: Convert to fraction form
    130,140.24/179,524.08 = 79,168.56/x
  3. Step 3: Cross multiply
    130,140.24x = 179,524.08 × 79,168.56
  4. Step 4: Simplify right side
    130,140.24x = 14,212,662,898.92
  5. Step 5: Solve for x
    x = 14,212,662,898.92/130,140.24
  6. Step 6: Final answer
    x = 109,210.36

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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.