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Finding the Fourth Proportional to 148,558.19, 205,007.10 and 84,018.92

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Solution

The fourth proportional to 148,558.19, 205,007.10 and 84,018.92 is: 115,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,558.19 : 205,007.10 = 84,018.92 : x
  2. Step 2: Convert to fraction form
    148,558.19/205,007.10 = 84,018.92/x
  3. Step 3: Cross multiply
    148,558.19x = 205,007.10 × 84,018.92
  4. Step 4: Simplify right side
    148,558.19x = 17,224,475,134.33
  5. Step 5: Solve for x
    x = 17,224,475,134.33/148,558.19
  6. Step 6: Final answer
    x = 115,944.30

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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.