Home / 125,267.48-187,920.66-42,155

Finding the Fourth Proportional to 125,267.48, 187,920.66 and 42,155

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Solution

The fourth proportional to 125,267.48, 187,920.66 and 42,155 is: 63,239.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,267.48 : 187,920.66 = 42,155 : x
  2. Step 2: Convert to fraction form
    125,267.48/187,920.66 = 42,155/x
  3. Step 3: Cross multiply
    125,267.48x = 187,920.66 × 42,155
  4. Step 4: Simplify right side
    125,267.48x = 7,921,795,422.30
  5. Step 5: Solve for x
    x = 7,921,795,422.30/125,267.48
  6. Step 6: Final answer
    x = 63,239.04

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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.