Home / 117,705.20-176,327.40-70,818.80

Finding the Fourth Proportional to 117,705.20, 176,327.40 and 70,818.80

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Solution

The fourth proportional to 117,705.20, 176,327.40 and 70,818.80 is: 106,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,705.20 : 176,327.40 = 70,818.80 : x
  2. Step 2: Convert to fraction form
    117,705.20/176,327.40 = 70,818.80/x
  3. Step 3: Cross multiply
    117,705.20x = 176,327.40 × 70,818.80
  4. Step 4: Simplify right side
    117,705.20x = 12,487,294,875.12
  5. Step 5: Solve for x
    x = 12,487,294,875.12/117,705.20
  6. Step 6: Final answer
    x = 106,089.58

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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.