Home / 143,099.66-197,478.29-89,415.83

Finding the Fourth Proportional to 143,099.66, 197,478.29 and 89,415.83

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Solution

The fourth proportional to 143,099.66, 197,478.29 and 89,415.83 is: 123,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,099.66 : 197,478.29 = 89,415.83 : x
  2. Step 2: Convert to fraction form
    143,099.66/197,478.29 = 89,415.83/x
  3. Step 3: Cross multiply
    143,099.66x = 197,478.29 × 89,415.83
  4. Step 4: Simplify right side
    143,099.66x = 17,657,685,207.33
  5. Step 5: Solve for x
    x = 17,657,685,207.33/143,099.66
  6. Step 6: Final answer
    x = 123,394.32

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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.