Home / 117,631.80-176,447.70-67,865.40

Finding the Fourth Proportional to 117,631.80, 176,447.70 and 67,865.40

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Solution

The fourth proportional to 117,631.80, 176,447.70 and 67,865.40 is: 101,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,631.80 : 176,447.70 = 67,865.40 : x
  2. Step 2: Convert to fraction form
    117,631.80/176,447.70 = 67,865.40/x
  3. Step 3: Cross multiply
    117,631.80x = 176,447.70 × 67,865.40
  4. Step 4: Simplify right side
    117,631.80x = 11,974,693,739.58
  5. Step 5: Solve for x
    x = 11,974,693,739.58/117,631.80
  6. Step 6: Final answer
    x = 101,798.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.