Home / 156,511.09-215,814.13-116,299.45

Finding the Fourth Proportional to 156,511.09, 215,814.13 and 116,299.45

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Solution

The fourth proportional to 156,511.09, 215,814.13 and 116,299.45 is: 160,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,511.09 : 215,814.13 = 116,299.45 : x
  2. Step 2: Convert to fraction form
    156,511.09/215,814.13 = 116,299.45/x
  3. Step 3: Cross multiply
    156,511.09x = 215,814.13 × 116,299.45
  4. Step 4: Simplify right side
    156,511.09x = 25,099,064,621.23
  5. Step 5: Solve for x
    x = 25,099,064,621.23/156,511.09
  6. Step 6: Final answer
    x = 160,366.05

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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.