Home / 72,083.10-108,124.65-68,000.70

Finding the Fourth Proportional to 72,083.10, 108,124.65 and 68,000.70

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Solution

The fourth proportional to 72,083.10, 108,124.65 and 68,000.70 is: 102,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,083.10 : 108,124.65 = 68,000.70 : x
  2. Step 2: Convert to fraction form
    72,083.10/108,124.65 = 68,000.70/x
  3. Step 3: Cross multiply
    72,083.10x = 108,124.65 × 68,000.70
  4. Step 4: Simplify right side
    72,083.10x = 7,352,551,887.26
  5. Step 5: Solve for x
    x = 7,352,551,887.26/72,083.10
  6. Step 6: Final answer
    x = 102,001.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.