Home / 147,784.32-203,942.58-84,122.12

Finding the Fourth Proportional to 147,784.32, 203,942.58 and 84,122.12

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Solution

The fourth proportional to 147,784.32, 203,942.58 and 84,122.12 is: 116,088.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,784.32 : 203,942.58 = 84,122.12 : x
  2. Step 2: Convert to fraction form
    147,784.32/203,942.58 = 84,122.12/x
  3. Step 3: Cross multiply
    147,784.32x = 203,942.58 × 84,122.12
  4. Step 4: Simplify right side
    147,784.32x = 17,156,082,187.87
  5. Step 5: Solve for x
    x = 17,156,082,187.87/147,784.32
  6. Step 6: Final answer
    x = 116,088.65

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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.