Home / 130,114.68-179,570.70-79,123.56

Finding the Fourth Proportional to 130,114.68, 179,570.70 and 79,123.56

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Solution

The fourth proportional to 130,114.68, 179,570.70 and 79,123.56 is: 109,198.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,114.68 : 179,570.70 = 79,123.56 : x
  2. Step 2: Convert to fraction form
    130,114.68/179,570.70 = 79,123.56/x
  3. Step 3: Cross multiply
    130,114.68x = 179,570.70 × 79,123.56
  4. Step 4: Simplify right side
    130,114.68x = 14,208,273,055.69
  5. Step 5: Solve for x
    x = 14,208,273,055.69/130,114.68
  6. Step 6: Final answer
    x = 109,198.08

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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.