Home / 174,678.06-261,991.50-85,907.70

Finding the Fourth Proportional to 174,678.06, 261,991.50 and 85,907.70

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Solution

The fourth proportional to 174,678.06, 261,991.50 and 85,907.70 is: 128,848.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,678.06 : 261,991.50 = 85,907.70 : x
  2. Step 2: Convert to fraction form
    174,678.06/261,991.50 = 85,907.70/x
  3. Step 3: Cross multiply
    174,678.06x = 261,991.50 × 85,907.70
  4. Step 4: Simplify right side
    174,678.06x = 22,507,087,184.55
  5. Step 5: Solve for x
    x = 22,507,087,184.55/174,678.06
  6. Step 6: Final answer
    x = 128,848.96

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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.