Home / 156,299.30-215,693.25-84,679.32

Finding the Fourth Proportional to 156,299.30, 215,693.25 and 84,679.32

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Solution

The fourth proportional to 156,299.30, 215,693.25 and 84,679.32 is: 116,857.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,299.30 : 215,693.25 = 84,679.32 : x
  2. Step 2: Convert to fraction form
    156,299.30/215,693.25 = 84,679.32/x
  3. Step 3: Cross multiply
    156,299.30x = 215,693.25 × 84,679.32
  4. Step 4: Simplify right side
    156,299.30x = 18,264,757,825.47
  5. Step 5: Solve for x
    x = 18,264,757,825.47/156,299.30
  6. Step 6: Final answer
    x = 116,857.58

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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.