Home / 137,055.14-189,153.46-76,629.34

Finding the Fourth Proportional to 137,055.14, 189,153.46 and 76,629.34

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Solution

The fourth proportional to 137,055.14, 189,153.46 and 76,629.34 is: 105,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,055.14 : 189,153.46 = 76,629.34 : x
  2. Step 2: Convert to fraction form
    137,055.14/189,153.46 = 76,629.34/x
  3. Step 3: Cross multiply
    137,055.14x = 189,153.46 × 76,629.34
  4. Step 4: Simplify right side
    137,055.14x = 14,494,705,130.74
  5. Step 5: Solve for x
    x = 14,494,705,130.74/137,055.14
  6. Step 6: Final answer
    x = 105,758.20

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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.