Home / 117,705.48-176,502.92-42,772.80

Finding the Fourth Proportional to 117,705.48, 176,502.92 and 42,772.80

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Solution

The fourth proportional to 117,705.48, 176,502.92 and 42,772.80 is: 64,139.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,705.48 : 176,502.92 = 42,772.80 : x
  2. Step 2: Convert to fraction form
    117,705.48/176,502.92 = 42,772.80/x
  3. Step 3: Cross multiply
    117,705.48x = 176,502.92 × 42,772.80
  4. Step 4: Simplify right side
    117,705.48x = 7,549,524,096.58
  5. Step 5: Solve for x
    x = 7,549,524,096.58/117,705.48
  6. Step 6: Final answer
    x = 64,139.10

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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.