Home / 125,390.90-187,867.64-104,465.36

Finding the Fourth Proportional to 125,390.90, 187,867.64 and 104,465.36

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Solution

The fourth proportional to 125,390.90, 187,867.64 and 104,465.36 is: 156,515.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,390.90 : 187,867.64 = 104,465.36 : x
  2. Step 2: Convert to fraction form
    125,390.90/187,867.64 = 104,465.36/x
  3. Step 3: Cross multiply
    125,390.90x = 187,867.64 × 104,465.36
  4. Step 4: Simplify right side
    125,390.90x = 19,625,660,644.95
  5. Step 5: Solve for x
    x = 19,625,660,644.95/125,390.90
  6. Step 6: Final answer
    x = 156,515.83

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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.