Home / 128,873.04-177,762.96-93,115.56

Finding the Fourth Proportional to 128,873.04, 177,762.96 and 93,115.56

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Solution

The fourth proportional to 128,873.04, 177,762.96 and 93,115.56 is: 128,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,873.04 : 177,762.96 = 93,115.56 : x
  2. Step 2: Convert to fraction form
    128,873.04/177,762.96 = 93,115.56/x
  3. Step 3: Cross multiply
    128,873.04x = 177,762.96 × 93,115.56
  4. Step 4: Simplify right side
    128,873.04x = 16,552,497,567.66
  5. Step 5: Solve for x
    x = 16,552,497,567.66/128,873.04
  6. Step 6: Final answer
    x = 128,440.34

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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.