Home / 120,624.22-166,457.45-72,869.22

Finding the Fourth Proportional to 120,624.22, 166,457.45 and 72,869.22

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Solution

The fourth proportional to 120,624.22, 166,457.45 and 72,869.22 is: 100,557.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,624.22 : 166,457.45 = 72,869.22 : x
  2. Step 2: Convert to fraction form
    120,624.22/166,457.45 = 72,869.22/x
  3. Step 3: Cross multiply
    120,624.22x = 166,457.45 × 72,869.22
  4. Step 4: Simplify right side
    120,624.22x = 12,129,624,544.69
  5. Step 5: Solve for x
    x = 12,129,624,544.69/120,624.22
  6. Step 6: Final answer
    x = 100,557.12

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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.