Home / 120,697.22-166,453.16-75,379.34

Finding the Fourth Proportional to 120,697.22, 166,453.16 and 75,379.34

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Solution

The fourth proportional to 120,697.22, 166,453.16 and 75,379.34 is: 103,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,697.22 : 166,453.16 = 75,379.34 : x
  2. Step 2: Convert to fraction form
    120,697.22/166,453.16 = 75,379.34/x
  3. Step 3: Cross multiply
    120,697.22x = 166,453.16 × 75,379.34
  4. Step 4: Simplify right side
    120,697.22x = 12,547,129,341.71
  5. Step 5: Solve for x
    x = 12,547,129,341.71/120,697.22
  6. Step 6: Final answer
    x = 103,955.41

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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.