Home / 156,027.66-215,317.92-84,407.64

Finding the Fourth Proportional to 156,027.66, 215,317.92 and 84,407.64

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Solution

The fourth proportional to 156,027.66, 215,317.92 and 84,407.64 is: 116,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,027.66 : 215,317.92 = 84,407.64 : x
  2. Step 2: Convert to fraction form
    156,027.66/215,317.92 = 84,407.64/x
  3. Step 3: Cross multiply
    156,027.66x = 215,317.92 × 84,407.64
  4. Step 4: Simplify right side
    156,027.66x = 18,174,477,476.91
  5. Step 5: Solve for x
    x = 18,174,477,476.91/156,027.66
  6. Step 6: Final answer
    x = 116,482.41

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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.