Home / 130,142.24-179,526.84-79,170.56

Finding the Fourth Proportional to 130,142.24, 179,526.84 and 79,170.56

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Solution

The fourth proportional to 130,142.24, 179,526.84 and 79,170.56 is: 109,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,142.24 : 179,526.84 = 79,170.56 : x
  2. Step 2: Convert to fraction form
    130,142.24/179,526.84 = 79,170.56/x
  3. Step 3: Cross multiply
    130,142.24x = 179,526.84 × 79,170.56
  4. Step 4: Simplify right side
    130,142.24x = 14,213,240,457.83
  5. Step 5: Solve for x
    x = 14,213,240,457.83/130,142.24
  6. Step 6: Final answer
    x = 109,213.12

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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.