Home / 134,783.68-185,941.34-78,162.24

Finding the Fourth Proportional to 134,783.68, 185,941.34 and 78,162.24

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Solution

The fourth proportional to 134,783.68, 185,941.34 and 78,162.24 is: 107,829.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,783.68 : 185,941.34 = 78,162.24 : x
  2. Step 2: Convert to fraction form
    134,783.68/185,941.34 = 78,162.24/x
  3. Step 3: Cross multiply
    134,783.68x = 185,941.34 × 78,162.24
  4. Step 4: Simplify right side
    134,783.68x = 14,533,591,643.00
  5. Step 5: Solve for x
    x = 14,533,591,643.00/134,783.68
  6. Step 6: Final answer
    x = 107,829.02

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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.