Home / 125,181.76-187,772.60-30,411.36

Finding the Fourth Proportional to 125,181.76, 187,772.60 and 30,411.36

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Solution

The fourth proportional to 125,181.76, 187,772.60 and 30,411.36 is: 45,617.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,181.76 : 187,772.60 = 30,411.36 : x
  2. Step 2: Convert to fraction form
    125,181.76/187,772.60 = 30,411.36/x
  3. Step 3: Cross multiply
    125,181.76x = 187,772.60 × 30,411.36
  4. Step 4: Simplify right side
    125,181.76x = 5,710,420,136.74
  5. Step 5: Solve for x
    x = 5,710,420,136.74/125,181.76
  6. Step 6: Final answer
    x = 45,617.03

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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.