Home / 130,212.41-179,696.51-72,849.83

Finding the Fourth Proportional to 130,212.41, 179,696.51 and 72,849.83

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Solution

The fourth proportional to 130,212.41, 179,696.51 and 72,849.83 is: 100,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,212.41 : 179,696.51 = 72,849.83 : x
  2. Step 2: Convert to fraction form
    130,212.41/179,696.51 = 72,849.83/x
  3. Step 3: Cross multiply
    130,212.41x = 179,696.51 × 72,849.83
  4. Step 4: Simplify right side
    130,212.41x = 13,090,858,942.36
  5. Step 5: Solve for x
    x = 13,090,858,942.36/130,212.41
  6. Step 6: Final answer
    x = 100,534.65

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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.