Home / 143,227.80-197,572.10-89,419.39

Finding the Fourth Proportional to 143,227.80, 197,572.10 and 89,419.39

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Solution

The fourth proportional to 143,227.80, 197,572.10 and 89,419.39 is: 123,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,227.80 : 197,572.10 = 89,419.39 : x
  2. Step 2: Convert to fraction form
    143,227.80/197,572.10 = 89,419.39/x
  3. Step 3: Cross multiply
    143,227.80x = 197,572.10 × 89,419.39
  4. Step 4: Simplify right side
    143,227.80x = 17,666,775,721.99
  5. Step 5: Solve for x
    x = 17,666,775,721.99/143,227.80
  6. Step 6: Final answer
    x = 123,347.39

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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.