Home / 256,109.55-353,421.91-141,385.74

Finding the Fourth Proportional to 256,109.55, 353,421.91 and 141,385.74

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Solution

The fourth proportional to 256,109.55, 353,421.91 and 141,385.74 is: 195,107.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,109.55 : 353,421.91 = 141,385.74 : x
  2. Step 2: Convert to fraction form
    256,109.55/353,421.91 = 141,385.74/x
  3. Step 3: Cross multiply
    256,109.55x = 353,421.91 × 141,385.74
  4. Step 4: Simplify right side
    256,109.55x = 49,968,816,156.99
  5. Step 5: Solve for x
    x = 49,968,816,156.99/256,109.55
  6. Step 6: Final answer
    x = 195,107.19

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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.