Home / 130,344.78-179,957.06-100,069.82

Finding the Fourth Proportional to 130,344.78, 179,957.06 and 100,069.82

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Solution

The fourth proportional to 130,344.78, 179,957.06 and 100,069.82 is: 138,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,344.78 : 179,957.06 = 100,069.82 : x
  2. Step 2: Convert to fraction form
    130,344.78/179,957.06 = 100,069.82/x
  3. Step 3: Cross multiply
    130,344.78x = 179,957.06 × 100,069.82
  4. Step 4: Simplify right side
    130,344.78x = 18,008,270,601.93
  5. Step 5: Solve for x
    x = 18,008,270,601.93/130,344.78
  6. Step 6: Final answer
    x = 138,158.74

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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.