Home / 117,985.80-176,947.74-80,538.96

Finding the Fourth Proportional to 117,985.80, 176,947.74 and 80,538.96

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Solution

The fourth proportional to 117,985.80, 176,947.74 and 80,538.96 is: 120,787.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,985.80 : 176,947.74 = 80,538.96 : x
  2. Step 2: Convert to fraction form
    117,985.80/176,947.74 = 80,538.96/x
  3. Step 3: Cross multiply
    117,985.80x = 176,947.74 × 80,538.96
  4. Step 4: Simplify right side
    117,985.80x = 14,251,186,953.95
  5. Step 5: Solve for x
    x = 14,251,186,953.95/117,985.80
  6. Step 6: Final answer
    x = 120,787.31

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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.