Home / 113,187.10-156,000.48-82,908.07

Finding the Fourth Proportional to 113,187.10, 156,000.48 and 82,908.07

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Solution

The fourth proportional to 113,187.10, 156,000.48 and 82,908.07 is: 114,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,187.10 : 156,000.48 = 82,908.07 : x
  2. Step 2: Convert to fraction form
    113,187.10/156,000.48 = 82,908.07/x
  3. Step 3: Cross multiply
    113,187.10x = 156,000.48 × 82,908.07
  4. Step 4: Simplify right side
    113,187.10x = 12,933,698,715.87
  5. Step 5: Solve for x
    x = 12,933,698,715.87/113,187.10
  6. Step 6: Final answer
    x = 114,268.31

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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.