Home / 145,404.37-218,106.64-66,463.24

Finding the Fourth Proportional to 145,404.37, 218,106.64 and 66,463.24

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Solution

The fourth proportional to 145,404.37, 218,106.64 and 66,463.24 is: 99,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,404.37 : 218,106.64 = 66,463.24 : x
  2. Step 2: Convert to fraction form
    145,404.37/218,106.64 = 66,463.24/x
  3. Step 3: Cross multiply
    145,404.37x = 218,106.64 × 66,463.24
  4. Step 4: Simplify right side
    145,404.37x = 14,496,074,520.10
  5. Step 5: Solve for x
    x = 14,496,074,520.10/145,404.37
  6. Step 6: Final answer
    x = 99,694.90

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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.