Home / 147,975.30-221,979.15-143,309.70

Finding the Fourth Proportional to 147,975.30, 221,979.15 and 143,309.70

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Solution

The fourth proportional to 147,975.30, 221,979.15 and 143,309.70 is: 214,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,975.30 : 221,979.15 = 143,309.70 : x
  2. Step 2: Convert to fraction form
    147,975.30/221,979.15 = 143,309.70/x
  3. Step 3: Cross multiply
    147,975.30x = 221,979.15 × 143,309.70
  4. Step 4: Simplify right side
    147,975.30x = 31,811,765,392.76
  5. Step 5: Solve for x
    x = 31,811,765,392.76/147,975.30
  6. Step 6: Final answer
    x = 214,980.24

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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.