Home / 120,938.21-166,898.71-66,492.66

Finding the Fourth Proportional to 120,938.21, 166,898.71 and 66,492.66

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Solution

The fourth proportional to 120,938.21, 166,898.71 and 66,492.66 is: 91,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,938.21 : 166,898.71 = 66,492.66 : x
  2. Step 2: Convert to fraction form
    120,938.21/166,898.71 = 66,492.66/x
  3. Step 3: Cross multiply
    120,938.21x = 166,898.71 × 66,492.66
  4. Step 4: Simplify right side
    120,938.21x = 11,097,539,887.45
  5. Step 5: Solve for x
    x = 11,097,539,887.45/120,938.21
  6. Step 6: Final answer
    x = 91,762.06

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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.