Home / 127,633.95-176,131.94-79,913.61

Finding the Fourth Proportional to 127,633.95, 176,131.94 and 79,913.61

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Solution

The fourth proportional to 127,633.95, 176,131.94 and 79,913.61 is: 110,278.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,633.95 : 176,131.94 = 79,913.61 : x
  2. Step 2: Convert to fraction form
    127,633.95/176,131.94 = 79,913.61/x
  3. Step 3: Cross multiply
    127,633.95x = 176,131.94 × 79,913.61
  4. Step 4: Simplify right side
    127,633.95x = 14,075,338,762.14
  5. Step 5: Solve for x
    x = 14,075,338,762.14/127,633.95
  6. Step 6: Final answer
    x = 110,278.96

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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.