Home / 143,087.45-197,461.45-89,403.60

Finding the Fourth Proportional to 143,087.45, 197,461.45 and 89,403.60

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Solution

The fourth proportional to 143,087.45, 197,461.45 and 89,403.60 is: 123,377.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,087.45 : 197,461.45 = 89,403.60 : x
  2. Step 2: Convert to fraction form
    143,087.45/197,461.45 = 89,403.60/x
  3. Step 3: Cross multiply
    143,087.45x = 197,461.45 × 89,403.60
  4. Step 4: Simplify right side
    143,087.45x = 17,653,764,044.20
  5. Step 5: Solve for x
    x = 17,653,764,044.20/143,087.45
  6. Step 6: Final answer
    x = 123,377.45

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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.