Home / 97,321.28-134,339.78-75,768.32

Finding the Fourth Proportional to 97,321.28, 134,339.78 and 75,768.32

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Solution

The fourth proportional to 97,321.28, 134,339.78 and 75,768.32 is: 104,588.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,321.28 : 134,339.78 = 75,768.32 : x
  2. Step 2: Convert to fraction form
    97,321.28/134,339.78 = 75,768.32/x
  3. Step 3: Cross multiply
    97,321.28x = 134,339.78 × 75,768.32
  4. Step 4: Simplify right side
    97,321.28x = 10,178,699,439.77
  5. Step 5: Solve for x
    x = 10,178,699,439.77/97,321.28
  6. Step 6: Final answer
    x = 104,588.63

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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.