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Finding the Fourth Proportional to 117,616.80, 176,220.40 and 76,042.40

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Solution

The fourth proportional to 117,616.80, 176,220.40 and 76,042.40 is: 113,931.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,616.80 : 176,220.40 = 76,042.40 : x
  2. Step 2: Convert to fraction form
    117,616.80/176,220.40 = 76,042.40/x
  3. Step 3: Cross multiply
    117,616.80x = 176,220.40 × 76,042.40
  4. Step 4: Simplify right side
    117,616.80x = 13,400,222,144.96
  5. Step 5: Solve for x
    x = 13,400,222,144.96/117,616.80
  6. Step 6: Final answer
    x = 113,931.19

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1.5x scale

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.