Home / 139,752.14-192,852.78-76,088.66

Finding the Fourth Proportional to 139,752.14, 192,852.78 and 76,088.66

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Solution

The fourth proportional to 139,752.14, 192,852.78 and 76,088.66 is: 104,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,752.14 : 192,852.78 = 76,088.66 : x
  2. Step 2: Convert to fraction form
    139,752.14/192,852.78 = 76,088.66/x
  3. Step 3: Cross multiply
    139,752.14x = 192,852.78 × 76,088.66
  4. Step 4: Simplify right side
    139,752.14x = 14,673,909,607.47
  5. Step 5: Solve for x
    x = 14,673,909,607.47/139,752.14
  6. Step 6: Final answer
    x = 104,999.53

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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.