Home / 143,584.12-215,410.86-45,088.12

Finding the Fourth Proportional to 143,584.12, 215,410.86 and 45,088.12

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Solution

The fourth proportional to 143,584.12, 215,410.86 and 45,088.12 is: 67,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,584.12 : 215,410.86 = 45,088.12 : x
  2. Step 2: Convert to fraction form
    143,584.12/215,410.86 = 45,088.12/x
  3. Step 3: Cross multiply
    143,584.12x = 215,410.86 × 45,088.12
  4. Step 4: Simplify right side
    143,584.12x = 9,712,470,704.98
  5. Step 5: Solve for x
    x = 9,712,470,704.98/143,584.12
  6. Step 6: Final answer
    x = 67,643.07

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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.