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Finding the Fourth Proportional to 145,521.65, 218,328.03 and 92,544

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Solution

The fourth proportional to 145,521.65, 218,328.03 and 92,544 is: 138,844.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,521.65 : 218,328.03 = 92,544 : x
  2. Step 2: Convert to fraction form
    145,521.65/218,328.03 = 92,544/x
  3. Step 3: Cross multiply
    145,521.65x = 218,328.03 × 92,544
  4. Step 4: Simplify right side
    145,521.65x = 20,204,949,208.32
  5. Step 5: Solve for x
    x = 20,204,949,208.32/145,521.65
  6. Step 6: Final answer
    x = 138,844.98

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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.