Home / 127,341.56-175,732.40-79,622.57

Finding the Fourth Proportional to 127,341.56, 175,732.40 and 79,622.57

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Solution

The fourth proportional to 127,341.56, 175,732.40 and 79,622.57 is: 109,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,341.56 : 175,732.40 = 79,622.57 : x
  2. Step 2: Convert to fraction form
    127,341.56/175,732.40 = 79,622.57/x
  3. Step 3: Cross multiply
    127,341.56x = 175,732.40 × 79,622.57
  4. Step 4: Simplify right side
    127,341.56x = 13,992,264,922.16
  5. Step 5: Solve for x
    x = 13,992,264,922.16/127,341.56
  6. Step 6: Final answer
    x = 109,879.80

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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.