Home / 120,501.81-166,302.45-66,803.67

Finding the Fourth Proportional to 120,501.81, 166,302.45 and 66,803.67

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Solution

The fourth proportional to 120,501.81, 166,302.45 and 66,803.67 is: 92,194.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,501.81 : 166,302.45 = 66,803.67 : x
  2. Step 2: Convert to fraction form
    120,501.81/166,302.45 = 66,803.67/x
  3. Step 3: Cross multiply
    120,501.81x = 166,302.45 × 66,803.67
  4. Step 4: Simplify right side
    120,501.81x = 11,109,613,989.99
  5. Step 5: Solve for x
    x = 11,109,613,989.99/120,501.81
  6. Step 6: Final answer
    x = 92,194.58

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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.