Home / 145,623.42-218,444.50-45,787.48

Finding the Fourth Proportional to 145,623.42, 218,444.50 and 45,787.48

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Solution

The fourth proportional to 145,623.42, 218,444.50 and 45,787.48 is: 68,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,623.42 : 218,444.50 = 45,787.48 : x
  2. Step 2: Convert to fraction form
    145,623.42/218,444.50 = 45,787.48/x
  3. Step 3: Cross multiply
    145,623.42x = 218,444.50 × 45,787.48
  4. Step 4: Simplify right side
    145,623.42x = 10,002,023,174.86
  5. Step 5: Solve for x
    x = 10,002,023,174.86/145,623.42
  6. Step 6: Final answer
    x = 68,684.17

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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.