Home / 145,017.12-217,525.68-39,836.64

Finding the Fourth Proportional to 145,017.12, 217,525.68 and 39,836.64

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Solution

The fourth proportional to 145,017.12, 217,525.68 and 39,836.64 is: 59,754.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,017.12 : 217,525.68 = 39,836.64 : x
  2. Step 2: Convert to fraction form
    145,017.12/217,525.68 = 39,836.64/x
  3. Step 3: Cross multiply
    145,017.12x = 217,525.68 × 39,836.64
  4. Step 4: Simplify right side
    145,017.12x = 8,665,492,204.92
  5. Step 5: Solve for x
    x = 8,665,492,204.92/145,017.12
  6. Step 6: Final answer
    x = 59,754.96

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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.