Home / 143,084.05-197,456.75-89,400.20

Finding the Fourth Proportional to 143,084.05, 197,456.75 and 89,400.20

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Solution

The fourth proportional to 143,084.05, 197,456.75 and 89,400.20 is: 123,372.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,084.05 : 197,456.75 = 89,400.20 : x
  2. Step 2: Convert to fraction form
    143,084.05/197,456.75 = 89,400.20/x
  3. Step 3: Cross multiply
    143,084.05x = 197,456.75 × 89,400.20
  4. Step 4: Simplify right side
    143,084.05x = 17,652,671,507.07
  5. Step 5: Solve for x
    x = 17,652,671,507.07/143,084.05
  6. Step 6: Final answer
    x = 123,372.74

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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.