Home / 130,001.43-179,453.60-81,590.36

Finding the Fourth Proportional to 130,001.43, 179,453.60 and 81,590.36

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Solution

The fourth proportional to 130,001.43, 179,453.60 and 81,590.36 is: 112,627.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,001.43 : 179,453.60 = 81,590.36 : x
  2. Step 2: Convert to fraction form
    130,001.43/179,453.60 = 81,590.36/x
  3. Step 3: Cross multiply
    130,001.43x = 179,453.60 × 81,590.36
  4. Step 4: Simplify right side
    130,001.43x = 14,641,684,571.65
  5. Step 5: Solve for x
    x = 14,641,684,571.65/130,001.43
  6. Step 6: Final answer
    x = 112,627.10

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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.