Home / 147,979.30-221,985.15-143,313.70

Finding the Fourth Proportional to 147,979.30, 221,985.15 and 143,313.70

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Solution

The fourth proportional to 147,979.30, 221,985.15 and 143,313.70 is: 214,986.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,979.30 : 221,985.15 = 143,313.70 : x
  2. Step 2: Convert to fraction form
    147,979.30/221,985.15 = 143,313.70/x
  3. Step 3: Cross multiply
    147,979.30x = 221,985.15 × 143,313.70
  4. Step 4: Simplify right side
    147,979.30x = 31,813,513,191.56
  5. Step 5: Solve for x
    x = 31,813,513,191.56/147,979.30
  6. Step 6: Final answer
    x = 214,986.24

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1.5x scale

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.