Home / 374,521.32-561,665.34-125,145

Finding the Fourth Proportional to 374,521.32, 561,665.34 and 125,145

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Solution

The fourth proportional to 374,521.32, 561,665.34 and 125,145 is: 187,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,521.32 : 561,665.34 = 125,145 : x
  2. Step 2: Convert to fraction form
    374,521.32/561,665.34 = 125,145/x
  3. Step 3: Cross multiply
    374,521.32x = 561,665.34 × 125,145
  4. Step 4: Simplify right side
    374,521.32x = 70,289,608,974.30
  5. Step 5: Solve for x
    x = 70,289,608,974.30/374,521.32
  6. Step 6: Final answer
    x = 187,678.53

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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.