Home / 128,224.23-176,834.34-106,784.79

Finding the Fourth Proportional to 128,224.23, 176,834.34 and 106,784.79

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Solution

The fourth proportional to 128,224.23, 176,834.34 and 106,784.79 is: 147,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,224.23 : 176,834.34 = 106,784.79 : x
  2. Step 2: Convert to fraction form
    128,224.23/176,834.34 = 106,784.79/x
  3. Step 3: Cross multiply
    128,224.23x = 176,834.34 × 106,784.79
  4. Step 4: Simplify right side
    128,224.23x = 18,883,217,861.69
  5. Step 5: Solve for x
    x = 18,883,217,861.69/128,224.23
  6. Step 6: Final answer
    x = 147,267.16

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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.