Home / 142,800.38-214,245.35-85,936.33

Finding the Fourth Proportional to 142,800.38, 214,245.35 and 85,936.33

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Solution

The fourth proportional to 142,800.38, 214,245.35 and 85,936.33 is: 128,931.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,800.38 : 214,245.35 = 85,936.33 : x
  2. Step 2: Convert to fraction form
    142,800.38/214,245.35 = 85,936.33/x
  3. Step 3: Cross multiply
    142,800.38x = 214,245.35 × 85,936.33
  4. Step 4: Simplify right side
    142,800.38x = 18,411,459,619.82
  5. Step 5: Solve for x
    x = 18,411,459,619.82/142,800.38
  6. Step 6: Final answer
    x = 128,931.44

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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.