Home / 260,159.71-390,156.51-82,625.19

Finding the Fourth Proportional to 260,159.71, 390,156.51 and 82,625.19

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Solution

The fourth proportional to 260,159.71, 390,156.51 and 82,625.19 is: 123,911.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,159.71 : 390,156.51 = 82,625.19 : x
  2. Step 2: Convert to fraction form
    260,159.71/390,156.51 = 82,625.19/x
  3. Step 3: Cross multiply
    260,159.71x = 390,156.51 × 82,625.19
  4. Step 4: Simplify right side
    260,159.71x = 32,236,755,768.49
  5. Step 5: Solve for x
    x = 32,236,755,768.49/260,159.71
  6. Step 6: Final answer
    x = 123,911.41

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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.