Home / 127,665.40-176,173.50-71,075.56

Finding the Fourth Proportional to 127,665.40, 176,173.50 and 71,075.56

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Solution

The fourth proportional to 127,665.40, 176,173.50 and 71,075.56 is: 98,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,665.40 : 176,173.50 = 71,075.56 : x
  2. Step 2: Convert to fraction form
    127,665.40/176,173.50 = 71,075.56/x
  3. Step 3: Cross multiply
    127,665.40x = 176,173.50 × 71,075.56
  4. Step 4: Simplify right side
    127,665.40x = 12,521,630,169.66
  5. Step 5: Solve for x
    x = 12,521,630,169.66/127,665.40
  6. Step 6: Final answer
    x = 98,081.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.