Home / 170,260.61-255,349.78-75,438.36

Finding the Fourth Proportional to 170,260.61, 255,349.78 and 75,438.36

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Solution

The fourth proportional to 170,260.61, 255,349.78 and 75,438.36 is: 113,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,260.61 : 255,349.78 = 75,438.36 : x
  2. Step 2: Convert to fraction form
    170,260.61/255,349.78 = 75,438.36/x
  3. Step 3: Cross multiply
    170,260.61x = 255,349.78 × 75,438.36
  4. Step 4: Simplify right side
    170,260.61x = 19,263,168,440.96
  5. Step 5: Solve for x
    x = 19,263,168,440.96/170,260.61
  6. Step 6: Final answer
    x = 113,139.32

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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.