Home / 134,153.44-185,021.88-83,130.74

Finding the Fourth Proportional to 134,153.44, 185,021.88 and 83,130.74

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Solution

The fourth proportional to 134,153.44, 185,021.88 and 83,130.74 is: 114,652.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,153.44 : 185,021.88 = 83,130.74 : x
  2. Step 2: Convert to fraction form
    134,153.44/185,021.88 = 83,130.74/x
  3. Step 3: Cross multiply
    134,153.44x = 185,021.88 × 83,130.74
  4. Step 4: Simplify right side
    134,153.44x = 15,381,005,800.59
  5. Step 5: Solve for x
    x = 15,381,005,800.59/134,153.44
  6. Step 6: Final answer
    x = 114,652.34

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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.