Home / 117,730.80-162,465.12-66,748.32

Finding the Fourth Proportional to 117,730.80, 162,465.12 and 66,748.32

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Solution

The fourth proportional to 117,730.80, 162,465.12 and 66,748.32 is: 92,110.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,730.80 : 162,465.12 = 66,748.32 : x
  2. Step 2: Convert to fraction form
    117,730.80/162,465.12 = 66,748.32/x
  3. Step 3: Cross multiply
    117,730.80x = 162,465.12 × 66,748.32
  4. Step 4: Simplify right side
    117,730.80x = 10,844,273,818.60
  5. Step 5: Solve for x
    x = 10,844,273,818.60/117,730.80
  6. Step 6: Final answer
    x = 92,110.76

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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.