Home / 156,313.68-215,711.88-84,693.36

Finding the Fourth Proportional to 156,313.68, 215,711.88 and 84,693.36

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Solution

The fourth proportional to 156,313.68, 215,711.88 and 84,693.36 is: 116,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,313.68 : 215,711.88 = 84,693.36 : x
  2. Step 2: Convert to fraction form
    156,313.68/215,711.88 = 84,693.36/x
  3. Step 3: Cross multiply
    156,313.68x = 215,711.88 × 84,693.36
  4. Step 4: Simplify right side
    156,313.68x = 18,269,363,909.12
  5. Step 5: Solve for x
    x = 18,269,363,909.12/156,313.68
  6. Step 6: Final answer
    x = 116,876.30

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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.