Home / 143,027.67-197,416.47-89,280.32

Finding the Fourth Proportional to 143,027.67, 197,416.47 and 89,280.32

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Solution

The fourth proportional to 143,027.67, 197,416.47 and 89,280.32 is: 123,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,027.67 : 197,416.47 = 89,280.32 : x
  2. Step 2: Convert to fraction form
    143,027.67/197,416.47 = 89,280.32/x
  3. Step 3: Cross multiply
    143,027.67x = 197,416.47 × 89,280.32
  4. Step 4: Simplify right side
    143,027.67x = 17,625,405,614.87
  5. Step 5: Solve for x
    x = 17,625,405,614.87/143,027.67
  6. Step 6: Final answer
    x = 123,230.74

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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.