Home / 260,124.75-390,007.85-102,371.31

Finding the Fourth Proportional to 260,124.75, 390,007.85 and 102,371.31

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Solution

The fourth proportional to 260,124.75, 390,007.85 and 102,371.31 is: 153,486.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,124.75 : 390,007.85 = 102,371.31 : x
  2. Step 2: Convert to fraction form
    260,124.75/390,007.85 = 102,371.31/x
  3. Step 3: Cross multiply
    260,124.75x = 390,007.85 × 102,371.31
  4. Step 4: Simplify right side
    260,124.75x = 39,925,614,002.93
  5. Step 5: Solve for x
    x = 39,925,614,002.93/260,124.75
  6. Step 6: Final answer
    x = 153,486.41

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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.