Home / 145,623.18-218,463.94-45,808.50

Finding the Fourth Proportional to 145,623.18, 218,463.94 and 45,808.50

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Solution

The fourth proportional to 145,623.18, 218,463.94 and 45,808.50 is: 68,721.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,623.18 : 218,463.94 = 45,808.50 : x
  2. Step 2: Convert to fraction form
    145,623.18/218,463.94 = 45,808.50/x
  3. Step 3: Cross multiply
    145,623.18x = 218,463.94 × 45,808.50
  4. Step 4: Simplify right side
    145,623.18x = 10,007,505,395.49
  5. Step 5: Solve for x
    x = 10,007,505,395.49/145,623.18
  6. Step 6: Final answer
    x = 68,721.93

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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.