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Finding the Fourth Proportional to 143,246.92, 214,575.13 and 83,902.67

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Solution

The fourth proportional to 143,246.92, 214,575.13 and 83,902.67 is: 125,681.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,246.92 : 214,575.13 = 83,902.67 : x
  2. Step 2: Convert to fraction form
    143,246.92/214,575.13 = 83,902.67/x
  3. Step 3: Cross multiply
    143,246.92x = 214,575.13 × 83,902.67
  4. Step 4: Simplify right side
    143,246.92x = 18,003,426,322.60
  5. Step 5: Solve for x
    x = 18,003,426,322.60/143,246.92
  6. Step 6: Final answer
    x = 125,681.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.