Home / 120,368.45-166,094.96-66,639.98

Finding the Fourth Proportional to 120,368.45, 166,094.96 and 66,639.98

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Solution

The fourth proportional to 120,368.45, 166,094.96 and 66,639.98 is: 91,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,368.45 : 166,094.96 = 66,639.98 : x
  2. Step 2: Convert to fraction form
    120,368.45/166,094.96 = 66,639.98/x
  3. Step 3: Cross multiply
    120,368.45x = 166,094.96 × 66,639.98
  4. Step 4: Simplify right side
    120,368.45x = 11,068,564,894.54
  5. Step 5: Solve for x
    x = 11,068,564,894.54/120,368.45
  6. Step 6: Final answer
    x = 91,955.70

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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.