Home / 156,037.40-215,331.64-84,417.38

Finding the Fourth Proportional to 156,037.40, 215,331.64 and 84,417.38

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Solution

The fourth proportional to 156,037.40, 215,331.64 and 84,417.38 is: 116,496.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,037.40 : 215,331.64 = 84,417.38 : x
  2. Step 2: Convert to fraction form
    156,037.40/215,331.64 = 84,417.38/x
  3. Step 3: Cross multiply
    156,037.40x = 215,331.64 × 84,417.38
  4. Step 4: Simplify right side
    156,037.40x = 18,177,732,879.90
  5. Step 5: Solve for x
    x = 18,177,732,879.90/156,037.40
  6. Step 6: Final answer
    x = 116,496.00

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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.