Home / 102,912.64-142,017.60-58,199.68

Finding the Fourth Proportional to 102,912.64, 142,017.60 and 58,199.68

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Solution

The fourth proportional to 102,912.64, 142,017.60 and 58,199.68 is: 80,314.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,912.64 : 142,017.60 = 58,199.68 : x
  2. Step 2: Convert to fraction form
    102,912.64/142,017.60 = 58,199.68/x
  3. Step 3: Cross multiply
    102,912.64x = 142,017.60 × 58,199.68
  4. Step 4: Simplify right side
    102,912.64x = 8,265,378,874.37
  5. Step 5: Solve for x
    x = 8,265,378,874.37/102,912.64
  6. Step 6: Final answer
    x = 80,314.52

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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.