Home / 143,305.50-197,700.18-89,497.14

Finding the Fourth Proportional to 143,305.50, 197,700.18 and 89,497.14

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Solution

The fourth proportional to 143,305.50, 197,700.18 and 89,497.14 is: 123,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,305.50 : 197,700.18 = 89,497.14 : x
  2. Step 2: Convert to fraction form
    143,305.50/197,700.18 = 89,497.14/x
  3. Step 3: Cross multiply
    143,305.50x = 197,700.18 × 89,497.14
  4. Step 4: Simplify right side
    143,305.50x = 17,693,600,687.49
  5. Step 5: Solve for x
    x = 17,693,600,687.49/143,305.50
  6. Step 6: Final answer
    x = 123,467.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.