Home / 143,087.51-197,461.53-89,403.66

Finding the Fourth Proportional to 143,087.51, 197,461.53 and 89,403.66

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Solution

The fourth proportional to 143,087.51, 197,461.53 and 89,403.66 is: 123,377.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,087.51 : 197,461.53 = 89,403.66 : x
  2. Step 2: Convert to fraction form
    143,087.51/197,461.53 = 89,403.66/x
  3. Step 3: Cross multiply
    143,087.51x = 197,461.53 × 89,403.66
  4. Step 4: Simplify right side
    143,087.51x = 17,653,783,491.20
  5. Step 5: Solve for x
    x = 17,653,783,491.20/143,087.51
  6. Step 6: Final answer
    x = 123,377.53

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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.