Home / 143,022.58-197,289.12-89,214.16

Finding the Fourth Proportional to 143,022.58, 197,289.12 and 89,214.16

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Solution

The fourth proportional to 143,022.58, 197,289.12 and 89,214.16 is: 123,064.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,022.58 : 197,289.12 = 89,214.16 : x
  2. Step 2: Convert to fraction form
    143,022.58/197,289.12 = 89,214.16/x
  3. Step 3: Cross multiply
    143,022.58x = 197,289.12 × 89,214.16
  4. Step 4: Simplify right side
    143,022.58x = 17,600,983,117.94
  5. Step 5: Solve for x
    x = 17,600,983,117.94/143,022.58
  6. Step 6: Final answer
    x = 123,064.37

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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.