Home / 117,517.80-176,276.70-99,803.10

Finding the Fourth Proportional to 117,517.80, 176,276.70 and 99,803.10

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Solution

The fourth proportional to 117,517.80, 176,276.70 and 99,803.10 is: 149,704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,517.80 : 176,276.70 = 99,803.10 : x
  2. Step 2: Convert to fraction form
    117,517.80/176,276.70 = 99,803.10/x
  3. Step 3: Cross multiply
    117,517.80x = 176,276.70 × 99,803.10
  4. Step 4: Simplify right side
    117,517.80x = 17,592,961,117.77
  5. Step 5: Solve for x
    x = 17,592,961,117.77/117,517.80
  6. Step 6: Final answer
    x = 149,704.65

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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.