Home / 144,631.80-216,947.70-143,319.60

Finding the Fourth Proportional to 144,631.80, 216,947.70 and 143,319.60

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Solution

The fourth proportional to 144,631.80, 216,947.70 and 143,319.60 is: 214,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,631.80 : 216,947.70 = 143,319.60 : x
  2. Step 2: Convert to fraction form
    144,631.80/216,947.70 = 143,319.60/x
  3. Step 3: Cross multiply
    144,631.80x = 216,947.70 × 143,319.60
  4. Step 4: Simplify right side
    144,631.80x = 31,092,857,584.92
  5. Step 5: Solve for x
    x = 31,092,857,584.92/144,631.80
  6. Step 6: Final answer
    x = 214,979.40

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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.