Home / 103,015.32-142,178.94-58,303.32

Finding the Fourth Proportional to 103,015.32, 142,178.94 and 58,303.32

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Solution

The fourth proportional to 103,015.32, 142,178.94 and 58,303.32 is: 80,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,015.32 : 142,178.94 = 58,303.32 : x
  2. Step 2: Convert to fraction form
    103,015.32/142,178.94 = 58,303.32/x
  3. Step 3: Cross multiply
    103,015.32x = 142,178.94 × 58,303.32
  4. Step 4: Simplify right side
    103,015.32x = 8,289,504,236.08
  5. Step 5: Solve for x
    x = 8,289,504,236.08/103,015.32
  6. Step 6: Final answer
    x = 80,468.65

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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.