Home / 195,810.40-293,629.20-77,442.40

Finding the Fourth Proportional to 195,810.40, 293,629.20 and 77,442.40

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Solution

The fourth proportional to 195,810.40, 293,629.20 and 77,442.40 is: 116,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,810.40 : 293,629.20 = 77,442.40 : x
  2. Step 2: Convert to fraction form
    195,810.40/293,629.20 = 77,442.40/x
  3. Step 3: Cross multiply
    195,810.40x = 293,629.20 × 77,442.40
  4. Step 4: Simplify right side
    195,810.40x = 22,739,349,958.08
  5. Step 5: Solve for x
    x = 22,739,349,958.08/195,810.40
  6. Step 6: Final answer
    x = 116,129.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.