Home / 134,090.84-185,039.38-80,405.48

Finding the Fourth Proportional to 134,090.84, 185,039.38 and 80,405.48

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Solution

The fourth proportional to 134,090.84, 185,039.38 and 80,405.48 is: 110,955.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,090.84 : 185,039.38 = 80,405.48 : x
  2. Step 2: Convert to fraction form
    134,090.84/185,039.38 = 80,405.48/x
  3. Step 3: Cross multiply
    134,090.84x = 185,039.38 × 80,405.48
  4. Step 4: Simplify right side
    134,090.84x = 14,878,180,167.80
  5. Step 5: Solve for x
    x = 14,878,180,167.80/134,090.84
  6. Step 6: Final answer
    x = 110,955.98

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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.