Home / 90,666.96-125,196.06-75,638.52

Finding the Fourth Proportional to 90,666.96, 125,196.06 and 75,638.52

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Solution

The fourth proportional to 90,666.96, 125,196.06 and 75,638.52 is: 104,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,666.96 : 125,196.06 = 75,638.52 : x
  2. Step 2: Convert to fraction form
    90,666.96/125,196.06 = 75,638.52/x
  3. Step 3: Cross multiply
    90,666.96x = 125,196.06 × 75,638.52
  4. Step 4: Simplify right side
    90,666.96x = 9,469,644,688.23
  5. Step 5: Solve for x
    x = 9,469,644,688.23/90,666.96
  6. Step 6: Final answer
    x = 104,444.27

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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.