Home / 147,665.92-203,709.74-87,195.36

Finding the Fourth Proportional to 147,665.92, 203,709.74 and 87,195.36

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Solution

The fourth proportional to 147,665.92, 203,709.74 and 87,195.36 is: 120,288.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,665.92 : 203,709.74 = 87,195.36 : x
  2. Step 2: Convert to fraction form
    147,665.92/203,709.74 = 87,195.36/x
  3. Step 3: Cross multiply
    147,665.92x = 203,709.74 × 87,195.36
  4. Step 4: Simplify right side
    147,665.92x = 17,762,544,114.81
  5. Step 5: Solve for x
    x = 17,762,544,114.81/147,665.92
  6. Step 6: Final answer
    x = 120,288.72

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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.