Home / 156,155.89-215,495.19-84,535.91

Finding the Fourth Proportional to 156,155.89, 215,495.19 and 84,535.91

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Solution

The fourth proportional to 156,155.89, 215,495.19 and 84,535.91 is: 116,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,155.89 : 215,495.19 = 84,535.91 : x
  2. Step 2: Convert to fraction form
    156,155.89/215,495.19 = 84,535.91/x
  3. Step 3: Cross multiply
    156,155.89x = 215,495.19 × 84,535.91
  4. Step 4: Simplify right side
    156,155.89x = 18,217,081,987.27
  5. Step 5: Solve for x
    x = 18,217,081,987.27/156,155.89
  6. Step 6: Final answer
    x = 116,659.59

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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.